Mario Odyssey has at least been announced to have a free update, which is good! I thought they'd charge for this one, but I suppose they're more likely to add paid content to Wonder (120 FPS, new levels etc) and release new versions of Mario Kart (which they have) and a new 3D Platformer (which is surely coming by Autumn 2026 at the latest?). They've done paid content for Mario Party which I think is fine, but I wouldn't be surprised to see something done with Paper Mario & Super Mario RPG as well.
That paragraph just shows how up in the air things are though!

Basically a bit of pot-luck right now as to which older games Nintendo decides to give any treatment to. I assume most bigger games that release after the Switch 2 will have full releases for both consoles (unless it's S2 exclusive). I should probably do more real work than looking at lists of Nintendo games and assigning what kind of update I think they should get...
I'm not sure I'm that jolly! Maybe I get all of my rage out at Man Utd performances, although even that has mellowed now! I accept what we are.