The books have a full on invasion. I kind of want to see this now too.
I'd love it though if the focal point of the invasion was another planet. Too much time spent on Earth already.
Maybe they invade Klingon space and the Federation is forced to help out, averting the "inevitable war" between them.
And who will say the line.. "They invade our space, and we fall back. They assimilate countless worlds, and we fall back. Not again. Not this time. The line must be drawn here
Cuz someone's gonna say it.