I can see Barton eventually replacing Geremi in that role if we continue with it and getting a naturally left sided player for Barton's position. If we had a top, top notch DM then I would like to see N'Zogbia given a chance on the left side of the midfield three.
Somebody has really got the defence into order anyway, the improvement has been drastic in terms of organisation and general play at the back in the past few games.
They both look fine for next season. Enrique imo could become a very good player. There's a couple of things he needs to work on like his final ball but overall he looks very accomplished. It's also worth remembering that while it's all well and good having them hit the byline we only have 3 in midfield right now so it's not always a good idea.
He always impresses me whenever I see him play. Doubt he will get much of a game at Manu now either with Anderson, Carrick, Hargreaves, Fletcher etc etc
Even if KK was to continue picking the same style formation into next season then I still think there could be a place for him in the team. He has a lot of talent and if he really wanted to then he could play on the left of a midfield three no bother. If he doesn't want to stay and fight for a place then let him go.