Why not? They had Traynor in ME3 (I hope this is not counted as being off topic again).
Considering that currently ALL female companions are romance options for males...I doubt they'd ever deny them one.
I just hope that when the SGR option comes, that it's a) for all classes and b) that there will be existing characters open for SGR and not just one or two new companions that would be available to all classes like the HK is suppossed to be.
I just hope lvl 50s can do them.