Not like last time, on the roof.
She won't directly jump into the fight, but I think she'll play a role in it. I really like Derock's idea, and something similar already happened in RtN, so it's possible Kishi has it in mind.
The first time she interfered, she didn't know who to side with and asked them both to stop. The second time, she subconsciously sided with Naruto, now I mean that it was his name she shouted. (I do not think this is because merely Sasuke is a villain now, I think her loyalty has bent over to Naruto whether she admits it or not.) I think by the time Naruto and Sasuke fights, she will already have reached her decision, and her mind and heart will cooperate. (What I mean with that is that what Sakura thinks and says sometimes contradict with her actions.)