Seems like some people are assuming LadyGT will definitely draw an alternate ending. She said she wanted to do it, not that she'll do it for sure. Just imagine the amount of effort that would take, to give closure on everything that needs closure. She would need far more than the 44 pages Kishimoto used, it would take close to a hundred. There's just too many things (and people) Kishimoto ignored in favor of just getting to the point (Naruto Hokage, Sasuke redeemed).
Easier to just write it down on fanfiction.
Don't get me wrong, I would love to see it. But it's just unrealistic.
I don't know about you guys, but I'd pay for a new ending by LadyGT. it'd totally be worth it. Her art is freaking bomb, and cleaner than kishi's work. I don't know what her policies on donations are though...