Dragon Age - Multiplayer Rumours
Kotaku has an article claiming information from an "insider" that BioWare is working on a Dragon Age game with multiplayer, built using DICE's Frostbite 2 engine. The insider didn't know if this is supposed to be an offshoot or Dragon Age 3 so take the source and reliability into account:
Apparently, dragons will also be playable in Dragon Age multiplayer, giving players the chance to go head-to-head with foes in fire-breathing, swooping-through-the-air dragon form.
The insider wasn't sure if Dragon Age multiplayer was going to be part of a full, stand-alone title (ala Dragon Age 3) or available separately as a downloadable game. It is apparently being developed on DICE's Frostbite 2 game engine (used for Battlefield 3), and even early-on the game apparently looks stunning.
The multiplayer is supposedly an arena-based affair and features player versus environment (PvE) elements as well as player versus player (PvP), as well as humans fighting dragons. Details on what PvE battles entail are scant.