I think next chapter is when we will finally see Sakura shine through and show us what she can really do.

Sakura has been training with Tsunade, a sannin and hokage, for the last 3 years. Even the Sakura haters have to ackowledge that she has gotten a lot stronger from that and has to have learned some crazy new jutsus as well. Sakura and Chiyo are now in dire straits and the death of at least one of them has been implied. Sakura has now been looked down upon by both Chiyo ("your usefullness has ended") and by Sasori for viewing her as nothing more than Chiyo's puppet. Usually under those circumstances a character steps up and proves their worth, so this could potentially be Sakura's finest moment.

I still believe that regardless of what Sakura does here, Chiyo will be fatally wounded. Sakura will do all she can to save her, but, she will only manage to keep her alive long enough for Kakashi and Naruto to retrieve Gaara's body from Deidara so that Chiyo can transfer her life force to Gaara.