I actually got a UE4 project started up a few months ago, that's being worked on right now. Permission from EA and all that. Most people on that project are people who wanted to move engines a while back, mixed with people who still work on the projects here as well. The people who are still here working on these project have every right to do so. They've had the options to move for years, but feel comfortable here. I know it's frustrating, but that's just what they want to do.
Didn't want to make it public like this, but just know that things are cooking on other engines.