If we sell Villa and loan out Deulofeu then I don't see why Tello can't get plenty of minutes next season. The 2 spots on the wings will be split between Neymar, Alexis, Tello, and Pedro. 4 players for 2 spots. Cuenca unfortunately is probably done at Barcelona. Of course there is the possibility of Tito's obsession with Iniesta on the wing but he should give Xavi much more rest which would allow Cesc and Thiago to get playing time at midfield where they belong.
If it were up to me, I would sell Pedro to help fund the purchase of a good CB.