User blog comment:Aleksandr the Great/Prothean Squadmate is Officially DLC/@comment-211.30.44.215-20120223045436/@comment-743796-20120224153534

This may just make a character who may very well appear in the game itself, a squadmate. That's what BioWare did with Liara in ME2. She was in that game, but not as a squadmate; this was remedied somewhat by LotSB.