Let's have a positive thread.
Whether you want it sooner or later, or never, it's eventually going to happen: Pathfinder, The Second! Unless some cataclysmic tragedy strikes Paizo, in which case we would all be very sad pandas. :(
Sorry, this is supposed to be a positive thread! I'm sure that even the most contented PF fan has a detail here and there that just doesn't sit quite right, so what's yours? I'll start:
I hope that 2e formalizes the very low levels (1-3ish) as the apprentice levels. I don't want to play or GM apprentice PCs, but I do believe that designing the low levels as apprentice levels is the first, and possibly most important lesson to be learned from 3.x's a la carte multiclassing system. And the a la carte system is something that I really like, and would like to see simplified and balanced.
The idea that makes a la carte MCing [theoretically] work is that a level is a level is a level. And thinking of 1st level characters as competent heroes was the first mistake that the 3e team made with MCing. The result is that the first level of any martial class is better than the later levels; the PF has patched the problem with the favored class carrot, but I'd rather see a more elegant rewrite. Besides, 1st level PCs already more-or-less have the grimly comical competence of apprentices! A lucky crit can kill pretty much anyone, rogues can't stab the broadside of a barn because they're trying to muscle their rapiers around, knights can't afford their shining armor, and casters...well, at-will cantrips have done a lot to make 1st level look semi-competent.
If the PF 2e team manages to write an elegant and satisfying MC system, they will have done something that D&D has never done. Early edition MCing is a joke*, 3.x MCing is a good idea with poor execution, I'm not sure that 5e will execute anything well, and as much as I love 4e, its MC rules leave something to be desired. Yes, as a self-professed 4e fanboy, I would probably buy PF 2e on the basis of a good a la carte multiclassing system alone!
Just saying. ;)
*The 2e team obviously hated the idea of humans with multiple classes, so I'm not sure why they even bothered to write the draconian dual-classing system that made it into the rules. Meanwhile, I've heard 2e vets say that "Multiclassing is half the point of playing a demihuman!"