Can't say I'm especially excited. Ridley Scrott used to bring something interesting to the table. Alien, Blade Runner, Thelma and Louise are all awesome. Ever since he did Gladiator it's been one boring movie after another. The only one since then I really enjoyed was Matchstick Men.
Alien was awesome because there was mystery to it. You had no idea where the aliens had come from, what the space jockey even was, or how that ship ended up where it did. That was interesting. It's part of what made the atmosphere in Alien so great. Now they want to go back and explain everything. Such a boring idea.
You may want to know that they have Damon Lindelof on board, from LOST. In LOST, whatever mysteries they revealed, only caused more mysteries. The thing is, I personally hated it.
PS. I agree on the boring movies he has made and Matchstick Men was really good. Though, Kingdom of Heaven Director's Cut gets lots of praise which I haven't seen yet. Anyways, I am super excited.