I got a bunch of the first Godzillas, non-4k FACs of Godzilla 2 and Kong, and that Hong Kong/Manta mediabook of GvK, so kind of enough, just no UHD discs for the middle two films. Preordered this box, in case more art of it is shown before release.
Europe is the same region as UK for BDs, but UHD discs have no region coding at all, and there's definitely an original English track. Don't know about subs.