I would definately want to see Bioware deliver on a multiplayer RPG experience, far from the MMO scene, though I admit it may be hard to find a market for that one nowadays. I fondly reminisce about the days when we used to play Icewind Dale I and II co-op, all six of us, high-school buddies. It was great, getting in one room with the notebooks, drinks and all, staying till the wee hours of the morning.... ahhhh.....
I just want to comment on this, even though it's way back at the beginning. There may be numerous fundamental reason why multiplayer non-mmo games are becoming super-mega-rare in the RPG genre.
1. It's not like the old days where games like Diablo were considered equally "RPG's". The genres have become a lot more narrow and firmly-defined due to the many, many more vocal Nerds Arguing About It Online.
2. In order to distinguish themselves from other genres, modern "real" RPG's have push forward in a lot of areas that don't really contribute much to multiplayer non-MMO's, i.e. story, immersion, realistic graphics/animations, etc. I'm sorry, but I totally would NOT enjoy DA: O if EVERY TIME I wanted to make a choice about where to go or what to do, I had to argue with 3 other people about it. NO FRIGGIN WAY. I would quit and play through the game by myself after 2 minutes of this.
3. These areas also create HUGE resource-sinks for the machines of players, which may make multiplayer incredibly prohibitive just from a technology standpoint.
4. Development budgets are skyrocketing, which means that extraneous features are being pared away as fast as they can be to keep costs under control.
5. The industry has no incentive whatsoever to see you get MORE bang for your buck out of a game. Quite the opposite, in fact--they want to get you to pay as much as you're willing to for as few features as they can manage. If you want generosity-inspired features like the toolset to make a comeback, chase down the people you know who pirate the game and MAKE THEM BUY COPIES. Otherwise, resign yourself to the equillibrium being more in favor of pared-down games.
The way this was even phrased is highly suspect. If you played the NwN single-player campaign through on multi-player, it sucked. It could be a major pain just to make sure that everyone had the proper quests and could complete them. So what you really got extra bang out of on multiplayer was not the GAME, but the toolset that came WITH the game.
Considering that the console sales outweighed the PC sales for DA:O, I think it's fair to say that the toolset feature appeals to very few people--on the ones who bought the PC version, and probably only a small fraction of them. So DA2 is and will be single-player. There's just no value out of multiplayer from Bioware's perspective, or the perspective of something like 90% of the people who are in the market for the game.