My wildest suggestion would be a leap, pretty much for fun but also would have small utility. Why not have a Jet Pack leap to a ground target, or to an enemy target, or to a friendly? I really don't put this on the main list because it would suck the credibility right out of the entire list. Its just my 1 crazy thing to suggest.
A leap to an enemy wouldn't make sense. Mercs are a ranged class, they have no business leaping to an enemy, as the whole point is to stay in range. A leap to a ground target, a friendly or both makes sense however.