Mass Effect 3 DLC, and it's "all hands on deck," level designer Jos Hendriks said on the BioWare forums.
"It's all hands on deck for this one. Pretty much every ME3 DLC writer here in Edmonton is involved (which would include both Patrick Weekes AND John Dombrow)," Hendriks wrote. Other writers included Jay Watamaniuk and Cathleen Rootsaert. Additionally, composer Sam Hulick tweeted that he's working on "unannounced Mass Effect 3 DLC."
"Tossing in piano and muted strings for this one particular piece. High potential for tears. #ME3DLC," Hulick tweeted.
Twitter previously outed Seth Green and Raphael Sbarge, voices of Joker and Kaidan Alenkowere, as working on something for Mass Effect 3. Neither appeared in Omega, the DLC that hit last week.