Heh it kind of makes sense. Up till now Sakura has only been focused on gaining Sasukes affections. Being a ninja was sort just a secondary thing. Now that Sasuke has been effectivly taken out of the story for whats probably going to be quite some time now all that she has left is being a ninja. Now that her main distraction has been eliminated we can FINALLY see her do something.

Bring on the slug summoning. Actually now that I think about it it what might happen is that the story will not directly focus on naruto. Maybe we'll get a sequence of chapters focusing on Sakura's training with tsunande. Narto will get kidnapped by the Atsuki and who will lead the recovery mission? Sakura will or at least take a large part in it because now she realizes that she may never love naruto but she respects and admires him. She also dosen't want to lose another friend to evil outside forces. With her new found motivation and skill sakura goes off with the other characters who never get screen time like ten ten and shino to go save Naruto?

Just a thought.