Something everone wants... advanced dretch. Also dretches that dont block tyrants or goons. These sortof got done with biledretch and dretchpunt, but there were lots of other ideas for them. Also, dretches that can wallwalk up a battlesuit.
What i want in adv. dretch - not exactly flying, but wings that let it jump a few times while in mid air. Using stamina like human jumping does, it would run out of flap and fall back to earth after 3 or so hops, and need to sit still to regen stamina. It could have slightly better air control than usual as well.
Jump direction should be up compared to the view, like the way goon pounce is forward compared to the view. You could get a pretty good pounce going, by looking down 45 degrees and hitting jump, jump, jump. Or get out of a tight spot by looking up and jumping a couple times.
On savage, I have seen 64 player servers full, and other servers that werent full, but claimed they could handle more than 64 players. Those big games are crazy though. Savage is best with about 16 people.