I'm still considering how much of the content will be available in demo. I think at least 2 more hunting grounds and class ascension as prestige mechanism.
The levels are unlimited now :P, it will just take a lot of time because the mobs will eventually give 0.001% of exp to level. Keep in mind that the saves won't persist between updates on the web version, so if you really want to put your time into it, then I suggest desktop version.
