Bah Switch 2 only. I'd be excited if it was coming out for anything more, but I don't have £400+ to drop on that, esp. given the expensive games which often go many years without significant price cuts.
That said, it might still be a "killer app" if we could be sure the in-between mission stuff was much less mind-numbing than Three Houses. I swear to god I didn't time it but it felt like I spent 2-3 hours farting around in that castle, just walking around mostly, doing tedious minigames or what were essentially pixel hunts for every 15 minutes I got to actually do battles, and IIRC it was set up so a lot of things were time-sensitive, so god help you if you neglected your castle-checking.