Progression, rewards is very optional imo.
Look at Neverwinter Nights series, they did fine without all the rewards and progression. What they had was a solid multiplayer system and world builder, lets players build their own mini world and adventure. Rewards and progression is a good thing but it first needs a foundation which D:OS 2 lacks. We have the promised Dungeon Master feature but theres no plans on NWN scale of multiplayer which is kinda sad. Work on that first than we'll talk about rewards, ranks and progression.
