I'd like to see:
The Mauler
The Snowcat--but stretch the cab so it can seat 4 and add a turret or gun hardpoint. At least fix those infamously weak tabs on the missile launcher box.
The Ferret
The STUN-- add some grab rails for the guys standing on the back fenders.
The Silver Mirage cycle
The Dragonfly
The Thunder Machine
The COBRA Wolf-add a retractable forward tread assembly to the nose, so its not restricted to running on just the forward skis.
And yes, I too want the WHALE, and a tweaked MORAY.