rift has a neat ability i've seen where you click a skill and select a landing area and it'll launch you towards that area, its meant to be used as a bull rush for tanks but i've seen it used in platforming, perhaps we could use that for jumping.

http://www.youtube.com/watch?v=_FJNkvNuG3Q#t=4m45s Here's an example, around 4m 45s ( link should auto put you there)