#MassEffect3
#spoilers
I didn't lose EMS (I think it only ever happened once in this playthrough). I went from 8188 before Priority: Cerberus Headquarters to 8288 after. Not that there's any dialog which changes at this point.
Since Garrus was dead, his voice did appear in the dream sequence.
Tali was in the Main Battery on the Normandy. I wasn't expecting that she would miss him, but she would have a chance to get to know him during ME2, and perhaps better without the ME1 elevator conversations where he insults her. She says that she wanted some of his confidence and Garrus would have been angry that we were finishing the war without him. She also quoted his, "Scoped and dropped," combat bark from ME2.
At the Forward Operating Base, Garrus is replaced by two turians talking about getting to die heroes in this war. The final change for Garrus being dead is that he is remembered by EDI during the Synthesis ending sequence (after Legion and before the Alliance soldier helmet in my case).
Oh and Shepard's last thought was about Jack. But, she's not there on the Normandy to memorialize Shepard and hug EDI, so Liara did that.