New travel power suggestion: Dimensional Shift
The idea surrounding this power is that you would be able to shift into another dimension thus allowing you to run through walls, buldings, etc.
Since I know that 3-D objects in the COH world are hollow, the game would move you automatically from one side of the building or wall to the opposite side, with an accompanying effect signifying that you are moving through a solid object. If moving through an object would move you off the map, the game would not allow you to pass through the object. Also, only buildings and trees and such could be shifted through, not the ground or hills or mountains.