Uncharted games have pretty good gameplay. But it is not perfect by any means. With Uncharted 4 coming out what improvements do you want in terms of gameplay?

I want better physics, better platforming sections, puzzles and boss battles.

Delete Uncharted 3. Copy/paste Uncharted 2.

What I find bizarre is that critics never complained about the gameplay in the past, but compared to other games, the mechanics always felt inferior and lacking.

ND were very lucky on this, but must have known that they could do much, much better, and it looks like the have.

Pretty much any complaint I had about previous games has been sorted out. The game pretty much looks perfect.

Yes, it would be great if can we bypass scripted sections where you're not in any real danger and/or if we already went through them before on a previous playthrough. Or if not in any real danger, it isn't really a puzzle, if we could skip those. I remember plenty of them in U2. There's this one moment in a recent gameplay section I saw in U4 where you're connecting a winch on the front of the jeep and you just have to tie a rope around a tree (reminiscent of Jurassic Park). And then you use this technique to get your jeep up the slippery mud hill. It seems like an interactive story event, but you're required to do work that doesn't really require your attention to begin with. I find stuff like that to be filler on every other playthrough after the first and would be better suited for a cutscene than gameplay. It seemed more story related any ways with the way the characters were interacting.

In what sense were the mechanics inferior?

Couldn't have said it better myself :)

Just completed 3 on ps4 today. Definitely one of the best adventure games ever. I'd like them to take some things from the last of us and add it to U4. Like AI intelligence and stealth.

That would be perfect.  Obviously I'd like an improvement again rather then just the same 

Base building! /hides.

Dunno what's already improved, but I would like improved platforming, exploration, path finding. From the limited things I've seen with the jeep that seems to be covered.

It might be fun to have a no kill stealth option, Thief or Deus EX style. Doesn't fit the game though I think. Plus I'll probably screw it up at some point.

How was Uncharted 1 better than 3 gameplay wise xD