There has been confirmation that the UK release date is 26 December!
I hoped it would be a bit earlier than that honestly, considering when it's coming out elsewhere. :/ It looks unlikely that I'll have a chance to see it before January.
Some more posters got revealed yesterday for the French and North American releases. I won't post them just in case people would rather not see (they do show a different screenshot from previous posters) but they are out there if you want to check them out.
I'm gonna see this on 15 December! One of my local cinemas has a one-off preview screening so I won't have to wait until after Christmas and New Year after all.