Yeah uh, I don't think that's going to happen. Uncharted 4 needs to drop first, and that's probably hitting Q4 this year, or early next year, so a sequel would be out of the question by then. I think a 2016 relase window is much more realistic.
That's nuts. The DLC isn't even out yet and they're already going to have a sequel ready for next year? We don't even know when Uncharted for PS4 is coming out, and that's been in development for several years.
I don't think it's even close to being ready. We'd be lucky to see The Order: 1886 this year, let alone Uncharted 4. The only thing we're getting from Naughty Dog in 2014 is Left Behind for TLoU.