I'm having a similar fatigue yeah. It really is amazing visually, the attention to details is fucking unreal and the environments are just so diverse... But it's definitely the same old same old. Main thing that's improved is the maneuvrability, where you can some really amazing feats of climbing, to the point I thought I was doing a really hard mission when I was in fact just going the wrong way (up a cliff). That's another thing I've been having difficulty with : I do like that they listened and did the whole not showing you where the objective is, but some of their hints are fucking atrocious and I've spent way too much time searching the area never to find it. Unfortunate. Anyway, at some point I took a break and haven't picked it up since. Just kinda forgot about it. Same with Origins. I just arrived in Atlantis, but haven't felt any irrépressible urge to get back to it, despite my thorough enjoyment of the game.