Damn, it's been *over* ten years since the Biollante Blu-ray came out?! It really is crazy how time flies!
I often procrastinate quite a bit when it comes to picking up movies, figures, books etc., but with that and the Kraken G'84 Blu-ray I made sure to nab those asap. After waiting for so long to finally have official releases with English subs I was NOT going to miss the opportunity to get them!
I wonder if Sony might still have streaming rights to MechaGodzilla, Space Godzilla and Destoroyah then too, since you'd imagine if they'd expired at the start of this year Criterion would have picked them up and included them in this upcoming streaming line-up as well? I assume this isn't some variation of "fiscal year 2023" or anything, where they don't count the end of 2023 as being until like halfway through 2024 or something like that.
Either way I'd imagine there must be something holding Criterion up from getting full access to those three just yet, going by that list and what you said about the streaming situation with King Ghidorah and Mothra.
I guess I could see them doing a Heisei/Millennium combo box set, given that'd bring the number of films close to the amount in the Showa one. Though judging by that list and not having G2K or Final Wars be available until 2026, I think I'd prefer it if they just released smaller sets for each era so we could get the Heisei films sooner. But if they did combine them, it'd make sense to do it the way you mentioned, with working on everything they've got up until that point and then saving G2K and Final Wars for last.
Also, seeing that list makes me wonder what the international rights situation is with Mothra, The H-Man and Battle in Outer Space and if Sony owns those as well, because as far as I'm aware, those are the only non-Godzilla classic Toho sci-fi movies that have gotten Blu-ray releases here in the UK in recent years (and rather good ones, too!) via Eureka under their Masters of Cinema label. I'd imagine they probably do and that made for some situation where they were easy to license as a result. It's a shame those are the exception rather than the rule and others like Matango and Space Amoeba etc. have never gotten any sort of releases over here, but that's always been pretty much par for the course (though at least things are a little better on that front now than they were back in the day).