User blog comment:AdmiralPedro1stFleet/Squadmates in ME3 I'd like/@comment-3325589-20120402185817

Ezno seems the obvious addition to the squad, both because ME: Infiltrator seems to set him up for a prominent role in the series, and because he's a mixed combat-biotics archetype, the one of the six that the ME3 lineup is still missing. Granted, Javik is a bit less squishy than Liara, but he's still basically an adept.

Zaeed would need some pretty major ability alterations to be a worthwhile addition to the squad, since Ashley does everything he did in the second game already (as in, she literally has all of his active powers and the same weapon options). Ditto for Grunt, who's really similar to James. As for Reegar, he could be a fun squad member, but I kind of suspect BioWare won't go that route. To judge by the DLC from all three ME games, they seem much fonder of adding to existing canon than altering it.

All in all, I'm more excited for DLC that adds missions with significant amount of gameplay time (a la Bring Down the Sky, Overlord, Arrival) than I am about new companions. Priority: Eden Prime had some interesting plot elements, but game-wise it was a bit more bite-size than I would have liked.