Specific character options I would love to see;
Whirlwind strike as a feat. Not super likely to happen, as great cleave exists, but personally I really dislike having to spend an rp to use it. But I've always loved whirlwind strike and to be able to do some more, reliable, martial aoe regardless of class would be wicked. Also a lot of martial classes already have options to do consistent aoe attacks, like Qi adept, vanguard blasts, Solarian supernova, etc. So maybe it wouldn't be that overpowered.
An option for experimental weapon mechanic to put the integrated weapon property on their weapon. Maybe have it take up as many slots as it has bulk. Integrated weapons are my favorite and would love more options in general but I feel like this would fit the class really well. Could make your PC like Samus/megaman/etc.
Put this in as a suggestion on the evolutionist forums already but I would love to somehow get armor as an augmentation. Flavour it as a carapace or similar, just having built in armor would be the coolest thing. Failing that, some sort of unarmored option, but that might be tough as environmental protections are so important. I also very much understand the need for the gear treadmill (which is why I think an augmentation might be better) so that's another reason it would be tough to fit.
2022:
- Find someone playing as a nanocyte.
Spell cards. It's been how many years and PF2 is already getting its own?
Alternate starship combat rules that are enjoyable.
More 1 book "adventure paths" than are already named for release.
More lore info on the Pact Worlds.
Lots of rules clarifications that are long overdue.
Arcane Operations Manual.
One out of six (1 book APs) this year, with 2 (spell cards and GM) delayed until January. Plus, some of Tech Rev and GM probably fits with Pact Worlds lore. Not bad.
Now if we get alt starship rules in Drift Crisis...