[saghm]

Sometimes, but their strategy for this sort of thing is pretty inconsistent. You have stuff like the bundle of Super Mario 64/Super Mario Sunshine/Super Mario Galaxy which got ported pretty much as-is, warts and all (except for maybe the infamously misheard line in Super Mario 64 after beating Bowser), without even minor quality of life or graphical improvements, "deluxe" versions of Wii U games like Mario Kart 8 that didn't really get the time to shine due to the lackluster sales of that console, and then a sizeable but by no means exhaustive catalog of older games available only via subscription to their online service (which to its credit is very affordable at only $20/year) and aren't playable if you've been offline for more than a week.

None of this is necessarily indefensible, but it paints a very unclear picture for what to expect going forward. The hard copies of the deluxe ports will presumably always be playable on Switch hardware, but will the next generation be able to use them? Similarly, one would hope that digital-only games that are fully offline after installing like the Mario bundle would be playable on consoles they already are installed on indefinitely, but will the store shut down and make it impossible to download again on a different device if your hardware dies? Will digital purchases made for the Switch ever be available without having to purchase again on the next generation console?

As for the subscription-only online games, I don't think there's much reason to believe that anything at all will transfer over. Even being able to transfer saved games from them to a new generation console would be more than I'd expect.

[mattl]

They did do some limited patches for 3D All-Stars to offer 16:9 resolution and patched the games to show Switch controls, but yeah... it all felt a bit lacking.