As the title says; Battlefield 4 has got the no. #1 priority for DICE.
All
of the people working at DICE are working non-stop to fix the game.
Finally, they woke up..
therefore, all future projects, such as new DLCs, are on hold.
And yes, if it is all of their people, the upcoming games (Star Wars Battlefront and Mirror's Edge) will be postponed.
Source:
http://www.ign.com/articles/2013/12/04/battlefield-4-problems-halt-future-projects-and-expansions