If it's released on Steam then I'll definitely grab it, as the multiplayer beta was really pretty decent and I enjoyed Crysis 2. I'm fine with Origin but I like to buy all my games on Steam for the community features (taking and sharing screenshots, tracking your in-game time, etc).
If not then I'll pass on it. I passed on BF3, ME3 and DS3 even though I was interested in them and I'll pass on SimCity as well. There's no point supporting a company that's actively working against my interests.