For me, this arc went from an arc with soooo much potential and it just sort of flattened. I remember how extremely excited I was when I saw Sakura on the field with the combatants, and how I thought she'd play a significant role in a fight with Rock Lee, Kakashi, and Guy but he skips that battle completely and we see her in a tent... I was pretty upset with that bit because we didn't get to see her fight for one, and then she was basically pushed to do only medical nin. I wished she would of fought Chiyo or some other biggie. Would of been epic IMO.
Same here! I was so excited for her when this all started. She looked so cool on the cover wearing her Chuunin vest with all of the other rookies. I remember you and I discussing potential enemies that she might face at the beginning of the war. I would have loved to see her fight Chiyo-baa-san. That would have been a great opportunity to give Sakura some development...
At the time, I was even thinking that Chiyo could somehow teach her the Life Transfer technique and, should Naruto lose the Kyuubi, Sakura would be there to sacrifice herself for him. (Quite a stretch, I know, but I enjoy thinking up dramatic scenarios like this for our favorite heroine.

).
It made me so frustrated to see Kishimoto put her in the medical tent off panel. "Oops, did I put Sakura on a team that's actually going to fight enemies? Well, we can't have that! Let's just pretend she's been in the medical tent this whole time. No one will notice..."
It seems like every time Sakura is given an opportunity to develop in this series, someone always pulls the rug out from beneath her. I wonder if that's Kishimoto's doing or his editor... I feel like it must be his editor. I mean, why would Kishimoto set up these chances for her only to change his mind at the last minute?
One example I can think of is a volume cover that someone on this site had pointed out in another thread. It's from Part One and features Naruto, Sakura, and Sasuke. Naruto has one of the frog summons on his head and the scroll that he carries during the Pein arc strapped on his back. Sasuke has his infamous katana and a snake summon coiled around him. Then there's Sakura. She has a giant axe sitting by her with a slug summon on her shoulder, (I believe there are multiple color spreads of Sakura with that axe in Part One). Here's the disappointing part: Both Naruto and Sasuke were given these upgrades in Shippuden, but Sakura was completely forgotten. She's also supposedly a genjutsu type. Kishimoto remembered to bring that up again at the beginning of Shippuden, but he never did anything with it.
So, what happened? I feel like Kishimoto started off with plans to develop Sakura into a more prominent character than she is, but for some reason, he ended up pushing her to the side so that he could focus on Naruto and Sasuke. As a fan of Sakura, that's really disappointing. I would have loved seeing her deal major damage with that axe. Could you imagine her swinging that thing around? Sasori would have been firewood by the end of their battle.
All we can do at this point is cross our fingers and hope that he doesn't lose sight of her. I don't think he has enough time left to give her the development that he had originally planned out for her, but I still hope that he lets her play a significant role in something before this series closes. Maybe as an epilogue, he'll do a time skip and show Sakura walking around with that axe, casting genjutsu on her enemies. However, I would be really disappointed to have not seen her completely developed while the series was ongoing.
EDIT: Enkai found the cover for me. This is it:
Edited by Slextrem, 05 January 2013 - 10:33 PM.