A new fighting engine. Imagine a fighting engine like dark souls for example but an open world like skyrim. Darksouls fighting engine needs tweaking too but it would be great if it was similar to that.
No.
The fighting system has been like this since Morrowind (And probably Daggerfall but I've never played Daggerfall) theres just been minor tweaks and improvements with it. And I like the system!
From Morriwinds Normal hack and slash to Oblivion normal slashing and power hits and hitting every time to Skyrims finishing moves and shield bashing.
I think it's fine!