I hope we see new destroids at Macross F. And a massive ground battle with them. Want to see destroids and troopers get into action.
I think destroids are not useless. Of course, at a colony fleet, valks almost get all the action. But as we see at Macross 7 (or at DYRL and Macross Saga) more then once enemy fighters break through the valks and entered inside of the colony ships and cities. Destroids would be a defense line at some strategic spots at these places. Main reactor area, airlock enterances, hangar door, etc... Also you can use for defending ships. As we saw at Macross Zero. You can place two destroids to protect bridge of the flag ship.