I honestly don't see Sakura getting a power up in this war arc it dose not fit the story at this time,if it ever happens it be in a noter arc were She first must overcome Her character flaw of indecision over Sasuke and that be a slow painful road that She must take alone, maybe if theirs a time skip were it shows Her personal struggle to get their but not in this war arc,When Kishi dose advance someone He has always done it slow and it's starts with the character always overcoming personal character flaws before they get a power up.Soory but thats how its ben for Naruto,Sasuke and Hinata they all first had to overcome aspects of their personalities before they got power ups.