I believe it will happen too. Messi is the heart of Barcelona. He has to be given the freedom to do what he wants however this feels like it has a momentum and life of its own. Guardiola, Birgiristain, Soriano may feel obliged to their friend, and I think they will do whatever it takes.
Signing Messi will be a dream however I also believe at the same time that the capacity of the player is declining and people have to accept that. Sure their football club has made a lot of footballing mistakes but possibly because the whole team revolves around him as a player and hence other signings can not fully be integrated into the team? Messi has become larger than life but this cannot be so. At 25-30 anything with a player like this is possible. You make him your crown jewel but what happens now?
I think we may over-commit in signing him. However, whilst I think that Messi's talents are limited, imagine the impact on players and the team around him. They will and should feel completely compelled to do everything they can to win for him and deliver him titles. I started out as an arch-cynic of this deal but I think that this could get out of control and in achieving a dream we may do some damage? We have to be careful and be prepared to draw lines which we do not go past. Of course I haven't a clue what is going on