When Can I Play the Citadel DLC?
You can play the Citadel DLC any time after stopping the Cerberus coup attempt on the Citadel and before beginning your attack on Cronos Station. (Note, I had previously said London, but was mistaken).
Will (CHARACTER NAME) be present in the DLC?
We would prefer not to spoil which characters will be present, or in what context, beyond what we’ve said: the DLC offers a chance to adventure with your ME3 squad, along with Urdnot Wrex, and to connect with old friends, including romances.
Will (CHARACTER NAME) be present only after a certain mission?
After completing the adventure portion of the Citadel DLC, you will have the chance to reconnect with old friends. Your friends will only appear once you have completed their content from the main game. For example, you will only be able to meet up with Jack after both completing Grissom Academy and talking to Jack in the bar at Purgatory.
Should I Have Everything Else in the Game Done Before Playing Citadel?
There is no right or wrong time to play the Citadel DLC, once it’s unlocked. If you play the Citadel DLC with everything else unlocked (just before attacking Cronos Station), the new DLC content will all be unlocked. If you play the Citadel DLC right after stopping the Cerberus coup attempt, the DLC content will unlock naturally over the course of the main game.
Does the Citadel DLC Affect the Ending?
No, not beyond the possibility of adding new war assets to increase your Galactic Readiness score. You may of course continue on to play the endgame after completing the Citadel DLC, but there is also a natural “stopping point” that should make it clear where the DLC content ends and your return to the main game begins.