Not much to add, based on your list, the best use you can make of the new pods is on the Carnifexen. You might go ahead and put Bio-plasma on them so they can get a shot off when they arrive.
I don't much like walking Tyrants in the current environment...you might just drop it, use the Tervigon as a second
HQ (with Thorax Hive) and have no need for a Big Brood of Termagants. If you want to run Devilgaunts, I like running it as x20,+10 Devils. for 160 points.

(Assuming you want a OS counts as Troops Tervigon)