Pogba is certainly not in Toure's class yet, though if he becomes half the player, he will would have done well.
He's not the sit and hold type of player really, even if he is good in defence and attack so it is interesting that many see him as an ideal replacement for Arteta/Flamini.
In would take quite a spectacular set of circumstances to see him here too, even if Juventus are not likely to hold onto him.
I would be surprised if Wenger isn't keeping a very close eye on the situations of Gundogan and Matuidi.