I pulled this from the patch notes of what's coming for you poor Engineer wannabies now that can't make wormholes anymore.  *cough* Ddriag *Cough*

"The new engineer ability will be Malfunction. Malfunction is the Engineer’s way to wreak havoc on their enemies in a very sneaky fashion. Essentially this will give the Engineer the ability to jam weapons and prevent ability usage, while the top level will shutdown movement for a short time on armored opponents. We will also be evaluating the Trap skill to make it more useful. New traps will be more like mines that blow up on being shot, taking on the damage type of the shot that triggers them, or magnetic mines that blow up in proximity or after being on the target a short time. These abilities may not make it in for Version 1.4, the next update, but should be in shortly after. "

-Shock