I think the best I could hope for would be a new class release.
All the very welcome bug fixes and balance changes would be nice but I don't think I'd play another run with just some brushing up of bugs,etc.
Honestly the majority of my runs went smoothly enough that I've demolished the content. Game has been super fun.
I think I'll avoid playing until they add a tad more content + one class. That way I can give the new class a run and see some new stuff.
I don't know if they plan to allow level 5 at some point but that would be super good, it's a tad upsetting getting to max level, I wanna see what I can pick next