They haven't announced any of the new romances. If there was a M/M romance, would you prefer a human or an alien?
I honestly would not care... human or alien.
What is interesting is, I follow this one Bioware dev's blog, and he is VERY Gay friendly, in that he said he was trying to sneak in a male/male romance into the game he was working on, because the VO's were already done and other things... and so he could possibly sneak it in. :D . Later on he finally could mention he was working on Mass Effect 2, though currently he can't talk too much about the game until later (such as confirming he did sneak this in).
Anyways, I'll keep my fingers crossed.