I'm also in the 'not massively excited' camp, for a combination of reasons. Sure, the most exciting things probably are on new hardware (and certainly, the biggest efforts will be heading there), but Switch will be my default system until I can replace it with next Switch. Partially my lack of excitement is deliberate - I've got a ton of stuff to get through already and I don't really feel like getting caught up in the Must Consume Next Thing mode I've been in for the last couple of years. For me, I'm most excited to perhaps finally see Metroid Prime 4 and to finally see what the Fire Emblem 4 remake will be like. Stuff like Star Fox, DK, Xenoblade X potentially coming back - I'd rather have that on new hardware.
What I am interested in, and what I do think we'll get, is some sort of NSO Expansion Pack update. With Mario Kart DLC coming to an end and Mega Drive drops seemingly vanishing (or being reduced to a couple of updates per year), there's a need for Nintendo to do more with their premium tier. They do seem to be aware of that - we got 3 N64 titles in December and 2 GBA titles in January, but that's not a rate of releases they'd be able to keep up all that long. With the recent GC controller stuff floating around - the kind of smoke which has preceeded systems coming to NSO - I'm very interested to see if Nintendo surprise me and start slowly adding GC titles in some fashion. I'd assumed that'd come with a price hike, or with a different method of delivery to the app-based system, especially with Nintendo already re-releasing multiple GC titles in different ways, but who knows.