I've probably missed the boat, but has anyone touched on the potential pros and cons of allowing jumping(and yes, "immersion breaking" is a perfectly valid reason) yet?

It seems to me there aren't many of either.

On one hand, there's the benefit of being able to jump up a TINY cliff that forces you to walk for another 7 minutes because you can't step over it. I think this has more to do with bad level design than anything else though, and could easily be dealt with by taking greater care in avoiding obtuse design decisions(La Theine I'm looking at you) or redesigning certain areas slightly.

There's also the argument that the world "opens up" and you can "explore". This is an impossibility because you can't explore something that hasn't been programmed in. In Final Fantasy XI, if there was a way to get somewhere, there was probably something there, and if there wasn't, well it was a wall. Final Fantasy XIV seems to follow the same philosophy.

If we're talking about combat advantages, things get a little more interesting, but abilities like stun for example, and the lack of an auto-attack make jumping behind an opponent to try to score a crit hit(a strategy I'd use as my rogue in WoW) unnecessary, because you can do the same thing by just circling around it.

Is there anything else I'm not looking at?