According to Vetex, the code of the game is old and is always suffering from server lag. The game will not be receiving any more development, though he did have an idea of creating a side game with the similar style as this one a few months after WoM's release.

R.I.P adventure story.

I asked him on twitter if he can ever come back but the only information i got is that he wished he could work in both games, also he didn't really liked the way certain things were coded in Adventure Story, and he doesn't have the inspiration at the moment to add new areas/enemies.