If Bandai & Yamato decided to truly make a complete line of 1/60 scaled Enemy Mecha's: Battle pods, Zentradi & Meltrandi, the Vajra..... and so on, It could be said that in some Anime series bad guys do not sell as well, But hell this is MACROSS were talking about, both sides are about equal in peoples interest. To have a fleet of Q-rau & Regult and Glaug's would be as desired as a squadron of Valkyries. Breetai's flagship as much as an SDF-1 or Battle Frontier and so on.
So if either or both companies were serious on the concept of Enemy mecha, what a cash flow it would be for them. I mean seriously, in the last 25 years, very little has ever been made, the only recent stuff has been Millia and Max's Q-rau from DYRL, I think most of us would like to see more than that offered!! And Pete is totally right, poseable pilots would be a big must!!
According to my magic 8 Ball, its says, "Future cloudy, but who knows.... stranger things have happened!!"