Replays used to be one of my favorite thing in the PS2 days. Since the next gen framerate issues started it really killed it for me, but lets say the FR was perfect again here's one of my long time dreams for PES... A replay editor! Where in game you would save the goal like usual but later on you could completely edit the camera angles. So say the total length of the replay is 30 sec. from 0-5 sec you could have the camera on regular view but then when the killer pass is about to come you switch views to ....maybe the passer or the receiver or the defender or the sideline or as a fan in the stadium!........ect ect ect Total control over where you put the camera.
The ability to slow down the play to just show off how nice that chip over the keeper was

. I mean this stuff would keep people immersed in the other side of the game for hours. It may take you 2 hours to edit that 30sec clip but when you get it right and upload that baby to Youtube and get 5 star ratings and heaps of praise for both the goal and the editing style....it's a win win!!
As I said before humans are creators by nature, if Konami give us the tools and make it relatively easy to use, It will get used to the point of abused
1 more thing that would be realy realy easy to implement, and something that used to irk the crap out of me is:- Let the player choose the highlights! A quick tap of the select button after an exiting bit of action and that's it!.
I fell in love with a game. We've been together 15 years now.