Geoff Keighley says Unreal Engine 4 wont run on Wii U

[Andrespetmonkey]

Does this mean the Wii U has lost a lot of third parties or will it take some time for everyone to transition to UE4?
Will devs be willing to do UE4 on Orbis/Durango and UE3 on Wii U? That seems like way too much work.