Someone made a comment about wizards in 5e being hobbled by attunement slots and concentration, but I can't find it...
I think that this is a necessary step to reduce the linear fighter, quadratic caster problem.
Yes.
Or something.
I don't think 5E's particular solution is necessary.
My point is that 5E finally did something that actually fixes LFQW.
That is the necessary part: fixing it.
If someone doesn't think LFQW is a problem I have nothing in common with that person.
If Paizo fixes it another way that would be fine too. What is entirely insufficient would be the PF1 approach; claiming to have fixed 3E while in reality being indistinguishable from it in any way that counts.
Pre-5E such an argument could be dismissed. Not so now, when I know for a fact 5E has implemented certain comprehensive fixes to the D&D framework, without which no DnD game should ever be published.
Doesn't need to be the same solutions, as long as it's real solutions.
What I think there is a minimal market for, is a Pathfindery game with all the flaws and merits of PF1 while offering zero compatibility.
If you want a d20 game, Pathfinder 1 is for you. If you want PF compatibility, Pathfinder 1 is for you.
But if you want something new, you'd better realize we live in a post-5E world.
A PF2 game with all the pre-5E flaws regarding spells and magic would come across as horribly antiquated. A relic out of touch with current reality.