I would need a decent hardware bump and drift fixed for good on its joycons to consider picking it up.
If all it is is 4K and a better battery then easy pass
Same...aided by me already upgrading from the launch model to the better battery model. 4K would be nice, but ultimately pretty meaningless to me (I play undocked <95% of the time). I wouldn't mind a legitimate mid-generation jump, but I haven't thought we were going to get that for a while now and I'm not seeing much smoke here. Do you know what else eventually replaced the original model? The better battery model. If this were a meaningful upgrade I doubt they'd be completely replacing the base model with whatever this is going to be. Especially not to launch this year with all of the chip supply issues. Nintendo was never going to be putting the latest and greatest chips into their consoles for numerous reasons, but when I still haven't even seen a PS5 or Series X in the wild after 6+ months I'm definitely not holding my breath that Nintendo even considered going for a meaningful hardware upgrade.
Fixing the joycons would be f***ing nice and years overdue, but certainly not enough to get me to buy a new system.
The Switch is basically fine for the kinds of games Nintendo makes. The problem is it's already getting choppy with mid-level indies, to say nothing of larger games. I don't need Nintendo making games that look much better than New Horizons or Smash Ultimate...but I'd like my JRPG machine to not get bogged down with loading times and framerate issues on ports/remasters of older games. It's not nearly as bad as playing SNES games on the PlayStation was (Final Fantasy Anthology/Chronicles, especially Chrono Trigger, introduced borderline insufferable load times to everything), but we're inching uncomfortably close more and more frequently.