kimchi

To add, Charles will likely be somewhat 'divisive'...I am certain they will make the changeover as long, drawn-out, and 'subtle' as possible to protect the 'institution'... 

Sure, nobody would attempt to withdraw all the circulating coinage and replace it with new stuff.
It would be hugely wasteful and expensive.
Before the UK went decimal in 1971, we were still using coins of Elizabeth II, George VI, George V, Edward VII, Victoria, and we even occasionally saw coins of William IV, George IV, or George III, going back to about 1816.
😎

It may depend on the date of the year when the monarch dies.
It is normal, traditional, and practical to continue using exisiting dies, and to issue planned and approved coinage, for the current year, and certainly into the next year if the death occurs late in the year.
This, and similar questions have been cropping up more frequently recently, on TSF and elsewhere.
We are about to produce a definitive guide on the subject.
😎

Also British Monarchs. 🙂

... I reckon that's why they decided on the Tudor Beasts - no mention of a Single Monarch 😏

Yes  normally a year later, QE  died in 1901 did not see EdwardVII on coins until 1902, EdwardVII died 1910, 1911 George 5th 1936, Edward VIII1937  and so on……just going off my sovereign collection…..

Is that true for coinage already in circulation or also for new coins, especially commemorative, that are struck?

Had an email from RM about Harry Potter release, its not long now 
" 
Spellbinding News From
The Royal Mint - Harry Potter
Join us right here at 7pm BST on Thursday 8 September for some enchanting news from The Royal Mint
We are thrilled to announce that we will be releasing a new collection of UK coins celebrating 25 years since the publication of J.K. Rowling’s Harry Potter and the Philosopher’s Stone, a book that continues to inspire a love of reading in countless people all over the world. The idea for Harry Potter, the boy in glasses who didn’t yet know he was a wizard, first came to J.K. Rowling during a delayed train journey from Manchester to London. From that moment of magic, the Boy Who Lived was imagined into being – an unassuming, eleven-year-old hero destined to face terrible danger, but also find greatness within himself. Harry Potter and the Philosopher’s Stone was published by Bloomsbury Children’s Books in 1997, the first of J.K. Rowling’s spellbinding adventures of Harry Potter, and his unforgettable friends Ron Weasley and Hermione Granger. In 2015, Bloomsbury commissioned artist Jim Kay to create the first fully illustrated edition of J.K. Rowling’s classic story.
Sign up to take part in an enchanting event streamed live from The Royal Mint Experience. Taking place at 7pm BST on Thursday, 8 September 2022, just a few days after the Hogwarts Express takes students to start a new term at a magical school, we will be unveiling the first coin design in the series. There will also be a panel discussion, where you will have the opportunity to send in questions for our expert panel to discuss. "

Finally became a man then?

She looks fine in this photo.
It looks like meeting Liz Truss was too much for the Queen. 🙄 
 

Also Charles wants to be seen as a modern, progressive king, while stressing continuity. So I expect him to ditch the crown, but keep the earrings

I would like me a 2019 if only because it’s a special year for me. 😀

All the piedforts are long-term keepers imo, except the 2017 which already did well for a few years after release (no idea about recently though).
They are a massive anomaly in the modern Sovereign range, with particularly 2019 (no sell-out) fairly low mintages. There will be very few excuses to release many more, as they didn't take off as a yearly thing.
I hold these with great confidence That said, I didn't bother with the 2022 myself at the new, much higher, price.

Just tick gift box and obviously leave out the commercial and vat part.

So this is what was asked/worked for me.
Get a cn22 form at post office or print online. Very easy to fill in and on the contents part.. write holy medal/souvenir and £10 value. ( the lower the value the higher chance it turns up at correct address).
Really nothing else to say other than postage cost is around £10 for international tracked.

Perhaps these sellers got them at a “dealer rate” from the RM?

All the piedforts are long-term keepers imo, except the 2017 which already did well for a few years after release (no idea about recently though).
They are a massive anomaly in the modern Sovereign range, with particularly 2019 (no sell-out) fairly low mintages. There will be very few excuses to release many more, as they didn't take off as a yearly thing.
I hold these with great confidence That said, I didn't bother with the 2022 myself at the new, much higher, price.

Child abuse at the highest levels of power is the glue that holds the grotty rotten system and states together worldwide I believe. 
The one currency to ensure total  compliance via blackmail.or influence. Play ball and do as you're told/instructed or your dirty little secrets will get leaked. The same of those at the head of law, justice, legal, police, banking hierarchy 
Birds of a feather flock together as they say

Mick miller looks well!
 

At worst it's part of the Great Reset and they want to crash it all.
At best, they fail to understand the root cause of inflation: increased supply of currency (in whatever form it takes) + increased velocity. It's not that complicated.
The Keynesians and Modern Monetary Theorists come out with really complex models, full of bull scat figures and have confused themselves.
All this nonsense about the inflation index which is so rigged to play down real inflation has been done for so long, that you have a generation of politicians and financial people who think it's real, or who know it's a partial con but have lost sight of where they think truth leaves reality.
In truth, the whole system is stuffed. We know it, I'm not sure they do.
I hear of price controls now. I predicted this would be their next move. To my knowledge, price controls and freezes just don't work. People will simply go out of business first, e.g. landlords will quit in droves if rents are fixed as they propose in Scotland.
It didn't work for Diocletian, it didn't work for the Jacobins and it didn't work for Richard Nixon.
But oh yeah, "it's different this time."

It'll be same chit, different WEF 'ypung leader graduate' taking their orders from Herr shwarb in Davos. 
Green agendas are not going to change. ESG scores for businesss and countries alike will be doubled down on as the chaos continue and gets worse
Look out for no. 1 and your nearest and dearest. The world is a powder keg of chit about to explode into hen summer is over the nights get dark and the weather gets cold 
You can make massive big changes to a society when they are hurting and don't have a pot to urinate in.
The new UK emperor will have new shiny clothes for a few weeks but then it's back to doom n gloom business as usual
 On the flip side 20 tins of tuna added to the food stack today, tins of chick peas, rice and kidney beans to

There are work house, you just now pay a mortgage on it and pay for your own heating an lighting….it’s called working from home. 

Effect?
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That would be great for holders in the short term as it would mean a 20% secondary market rise over night…….but I do know what you mean mate I’m amazed gold is not subject to VAT……an even more the  inheritance tax free  part, only guessing most people are not clued up, as if you had kids to pass wealth on it would be better to liquidate everything in to gold and give it to them tax free.  Inheritance tax is criminal when you think about it as your assets have been paid by money that’s already been taxed.