i agree, I feel that unless sasuke turns back to normal (when team 7 started getting along in part1, where sasuke always helped sakura) then sakuras going to sacrifice herself for no reason when both naruto and sasuke fight (if that ever happens).
even if the two dont fight, sasukes has a plan and oro is BSing right now and im not buying it, hes just waiting for sasukes move
sakura knows that sasuke didnt come back for them, maybe slightly, but the real reason is for himself, everything he does has purpose to him..