I think Relic is overdoing themselves, or Sega is overdoing them.
So you have:
Dynamic campaign
linear campaign with story sequences
4 factions
MP for 1v1 2v2 3v3 4v4
Map refining, balance refining
a new Engine
Bugs, glitches, visual errors etc.
and that all in 4 months
Why isn't SEGA giving them more time?
I'm afraid!
they can 'do' all these is probably because the 'new' engine is old/tweaked essence.
nothing of the engine felt clearly upgraded.
units abilities seems recycled and mixed around once again.
so they just needed to focus on content and level designs....but yet it seems they hired a bunch of noobass mobile developers. in 4 months time, i expected a much more polished mission alpha than what was shown.