Actually, that's a good assumption to make. The Mt. Hildar Coliseum will be centred around battle--hopefully both player-vs-player and player-vs-monster. However, the battle demo won't ever be used within the Hildar demo; they are just demonstrations. A full-functioned Mt. Hildar map to roam about in should come with some shop mechanisms in the real game.
As for the "when": there is nothing for any of these trailers/demos or the game itself for that matter.
oh....tht.....in tht case your probly right, unless daniel fixes tht problemo
He likely won't. I believe in some release of the game there will be clans, though, which will be cooperative. I believe encounters with all players outside a clan will become PVP matches.
As soon as we get some enemy sprites, I can finish up Mt. Hildar Coloseum. I've been waiting for 2 years for enemy sprites, and no one on the team has ever supplied me with any. That is why my focus has been elsewhere.