One of the best things of Baldur's Gate for me is the tactical battles the world and story are great, but the battles are what kept if fun in the long run and gave a sense of skill when completed successfully. While single player is the core of the game, I've found multiplayer always adds to the longlivety of a game and this also applies to Baldur's Gate series. It's easy to improve on those online features.
I'd love to see an option to use my party * against someone else's party.
I think there is two modes to go from this, loading a party from a save game or setting it as default and then fighting against someone else would really be fun. But also using the party creator, than having a set amount of gold to buy items in the map as a more balanced mode (it would be cool if you could save some regular builds and then select them before the match if they fit the balance rule set of said game).
This especially works well if some small battle maps were created for this, for example with some random traps to give thieves more purpose in these battles. Also some creep camps set between the players could be very nice.
- So 1 party vs another party battle.
- A DotA (Defense of the Ancients) type of approach, where both parties have to defend their building/creature and destroy the one of the enemy to win the game. A nice twist would be that if party members won't be automatically revived indefinitely like DotA type games do.
- The dungeon race. Parties start in a corner of one of the dungeons paths that lead to the center of the dungeon. Each path is somewhat symmetric or more important balanced compared to the other. Each party will have to fight their way towards a certain point in the dungeon (likely the middle), the first party to reach this location is the winner. Again the traps, illusions and having a party to fight very different types of creeps etc. could play a big role.
* A party might be controlled by a single player or each party member by a real player.
Being a programmer myself and seeing that most changes that are being done at the moment are less work, I'd still hope this makes it in. But if not BGII or even BGIII would be the next best thing. Some suggestions by players that are very good but not possible at the moment, don't lose those suggestions they might be essential later on. Also you might still implement a simpler variant for now.
For example. I've another, much simpler to implement idea for dungeon races. The party enters a map, if it successfully completes it a time is saved and kept online. A sort of ranking system to see how well your party does compared to others.
I admire the effort you guys are willing to make.
Of course I've dozens of other ideas.