I mean Yoshida has gone on record to describe things in interviews that end up exactly how he's described. Blue mage, Red mage, Samurai even hrothgar were described in interviews and later released to the specifications of those comments. I don't think it's too far of a stretch to say they already had/have an idea for the look of male viera but went with Hrothgar because as stated they felt it would fill a more needed Niche.

That being said whatever they do decide to do is up in the air, nevertheless they haven't shown that they accept feedback for graphical designs/updates outside of the gear design contest, I mean look at the Monster hunter event, everyone wanted a monster hunter set but they chose to go with a unique design instead, even the male bunny outfit is just the females tweaked slightly to fit.

I agree with most of what lauront is saying though when comparing the male viera in his sig to the one in the concept art and that's what I think they'll most likely look closer to. A male elezen with broader shoulders and wider pecs, will I cry if they look any different though? not really and I wouldn't call them a waste of resources if they looked like something drastically different.