My opinion is, that character jumping would be awesome, and would definately solve the problem that we feel ourselves fixed to the ground.
I think the best solution would be to allow people to jump over (or down) smaller obtacles like elevations on the ground, fences or boulders.
In addition, the implementation of a system that allows the player to climb over fences, or climb up to some hills or buildings that look easily reachable would be very fovourable. I'm talking about the fact, that in the current state of the game, players are unable to really move their charaters around the environment. It looks like the player is glued to the ground, the only exeptions are emote animations, and they made the game a lot more enjoyable, especially for players in parties.
So, my vote is for jumping.