Mothership core HAS to come back!

i agree with you. i have been able to use it by playing a different expansion but, because the new models is not all equipped with a proper mothership model, they glitch. i got a partially empty model as a result. i agree that they should add it back but, it is not as simple, because of those glitches. think it can be accessed through heart of the swarm mode, though i am not sure about that.