I don’t even see Nintendo doing a lot of that, as there really isn’t much money in a lot of Capcom’s current IPs, let alone the old ones. Resident Evil is one of their biggest IPs, and the most recent entry lost literally half the franchise’s install base. Street Fighter V only retains players because of the tournament money, and Marvel vs. Capcom Infinite has been a colossal failure. Monster Hunter has only ever been popular in Japan, and isn’t suddenly going to become a worldwide success just because they put one game on a console instead of a handheld - and even if it’s somewhat successful anywhere else, investors are going to riot when Monster Hunter: World hits shelves in Japan and the game does worse there than the late Switch port of Monster Hunter XX. Dead Rising ended up chained back to Microsoft, and the sales numbers have reflected the unpopularity of that decision pretty well. With older stuff, there’s a lot of overblown nostalgia for Mega Man that would never translate into actual sales of a new game, there hasn’t been any real interest in a new Final Fight since the SNES, and…well, it’s not like Capcom has anything else in the way of “classic” IPs that would have even the slightest chance of being home-run successes if they were revived. (This applies to most publishers, actually.)
In many ways, Capcom has poisoned their IPs to fans, particularly in the west, which is why I don’t think any other company would do much with Capcom’s IP stable either - or, at least, not anything anyone here would be happy with. If they really are looking at being bought out, it’s easy to see a scenario where Koei Tecmo, Sega Sammy, Namco Bandai, or Square Enix picks them up just to have access to the handful of popular Capcom IPs for mobile games, plus Monster Hunter for easy money in Japan.