It totally makes sense now, it's been odd that they've been going about with GMA3 at the new studio without mentioning anything about Eva or Demarco. If you don't keep track of what's been reported on the New York Post, you think they were simply erased from the third hour altogether.
My commentary on Demarco and Eva, they had tough shoes to fill replacing Amy and TJ, who had crazy electric chemistry, which made for good television.
Looks like ABC News is going with a panel format for that hour (which is a much more flexible, safer alternative), or is just keeping the hour warm until they get a big talent to host the slot.