I understand what you're trying to say, and yes, Sakura has done some really good things. However, the issue is that Sakura is a main character in name, but she is not treated like one in action. I'm not saying she needs to fight more in order to be relevant -- of course it would be nice -- but the only part of the plot she currently has any role in is the romance subplot not the main plot. As someone who loves Sakura's character, this bothers me because I don't feel it does her justice.
I mean, if you compare Kishi's handling of Sakura in the beginning of part two, to now, the difference is pretty big. Sakura was great then, not just because she fought, but because she was not limited to her feelings for Naruto and Sasuke, or her support of Naruto's dream, though both of those things were part of her character and her motivation. She was still her own character, active and present in whatever was happening at the time.
If Kishimoto is setting up something for Sakura with the recent chapter, great, but if it only leads to another pairing hint or parallel...
I'm sorry but that's not making Sakura relevant. I truly hope you are right and she does get to play some part in upcoming chapters, but the track record has not been promising.
Kishimoto's treatment of Sakura in comparison to Naruto and Sasuke, or even Kakashi, is vastly unequal. She is not given or treated with the same importance as they are, I'm not talking about fights here either, but the fact that they have a role and connection in the main plot. Sakura is the only one from the original main group of characters left to stay in the background, only stepping into the spotlight briefly now and then. Even after this arc is over she has nothing set up for her to do, since she's decided to just believe in Naruto and Sasuke to take care of things on their own.
Maybe Kishimoto really doesn't feel confident writing females and that's the reason why things are the way they are with Sakura, I don't know. It could be. Or maybe he just doesn't feel she needs to have a role outside what she has now.
I'm not trying to be negative here, but this is a place where I feel I can share my opinion, be it good or bad. If it bothers people though, I will stop.
I really don't see it that way at all. How has it changed? What do you mean by not the same importance? See, one of the things I like about Sakura is that her we ( the readers) see the story though her eyes. She has what appears to be a lesser role only because Kishi tends to use her as a way of letting us "see" the story unfold. We don't see into the emotional side of things much when Sakura is not present. This ( I think) is why people say her development has more to do with her mental state, or her feelings.
Yes she fights as well, and that's always fun to watch...But her character is what gives this series feeling.
When she feels down, we feel down, when she cries, we feel like crying etc...
I can't see her as unimportant if this series's heart depends on her.
Naruto and Sasuke...They rarely show it when they feel down, they hide their tears, Sakura doesn't.
It's what makes her so much more real.
And I'm not sure how else to say it...If what I am saying now even makes sense to everyone...But her role is a very important one.
She is more then just your ruin of the mill heroine. ( to me)
I know many others seem to think she lacks this or that....And honestly? I think no matter WHAT she does, some people are always going to find something wrong.
Because when you look for negative things, you will find them.
No one is perfect.
I don't want Sakura to be flawless ( I hate Mary-Sue's) I just want her to be a part of the plot like the rest of the main cast. I think she has stayed that way for a very long time. ( Only a few chapters during the war arc did we really start notice a lack of Sakura-chan...)
I think many just wish she got to fight more, but for me, although I feel that way at times, I don't see why fighting is the only way. There are heroines out that that are not fighters. Those who support the ones that are. ( and they also are tough yet sweet...AKA Tsundere)
.......Idk...It just seems like people are trying harder to nit pick when they should just be happy. =/
( Not saying you are btw...but ....some others...and ya'll know who you are...) 
Let's all try and NOT nit pick......ok? 