But for start i am be very pleased if it can make and edit basic meshes like in GDC and of course those nasty darn UV maps in future, it is horror to edit them and then use different material on UE4 which is wrongly positioned or size is wrong or want to assign/remove material on faces. I understand that complicated meshes still need 3rd-party soft but ground and buildings and so on could be doable with Geo 2.0
Good example of UV editing is old BSP but BSP itself is ancient implementation. Hammer 2 is best example where Geo 2.0 should go.