So many people compare Naruto, Sasuke and Sakura to the Sannin, not strength wise but for there respective roles and skills (sakura a medic, Sasuke a missing nin, etc.). Also alot of people on this site think that she is fairly useless (I must admit I am inclined to agree, although she is a very good medic). So I ask the masses how could kishi actually improve, her? Skill wise, character wise take your pick.
My 2 cents: She should learn water nature ninjutsu, than she would be an uber. I mean imagine her jutsu's; Water Style: River of Tears, now that would be a big F**king river (haha sorry had to do it).
To be realistic the only actually feasible thing for her to gain is genjutsu. It's been stated since the beginning of the manga that she was a genjutsu-type (or at least could excel as a genjutsu-type) by Kakashi.
She could, at the very least, be as good as Kurenai.
-Proficiency in genjutsu
-Medical jutsu
-Super strength
Yep, not bad
I hoped since the beginning of Part 2 that Kurenai would eventually recover from giving birth and return to train Sakura. But seeing as it's already nearing the end of the war I don't know how that's going to happen. Unless there is another arc which seems unlikely