I haven't played in this new system but just from what I've been seeing people do I think it adds a lot more strategy to the cav class. They can't simply circle poke with a lance anymore, they have to now plan their charge well ahead of time. It gives them much more incentive to "hit and run," making lance passes and getting far away before wheeling around and attacking again.
It also creates a great dichotomy between lance cav and onehanded cav; you'll want a good mix of the two in a good team, since lance cav can be your flankers and 1h cav can get in close and dirty with their sideswings and circling.