User blog comment:Commdor/Rumor: ME3 "Rebellion" Multiplayer DLC Incoming/@comment-4953843-20120505191403/@comment-4953843-20120509125849

no need for actual contact. blood/skin scrapings/whatever from virtually anywhere javik has been.

including his stasis pod.

conveniently accounting for prothean presence in the game if you never did/didn't have From Ashes (they'll have a whole prothean popsicle to examine in a lab and draw samples from).

... but, as people pointed out here, it's even more likely "phoenix" stands for something ex-cerberus. elite supersoldier wing or some such. then again, we're only guessing 'till the dlc comes out.