Surprise! No new concept art. (sorry if you were hoping for some)
I'm here to request the inclusion of Omega (the spider robot from FFV), but have it named Omega Weapon.
Reason:
There's an argument going on at the FF wiki over whether or not Omega and Omega Weapon are the same creature (and by extension, whether or not they deserve the same page). You can skim the argument here.
Adding Omega Weapon as a spider robot, or better yet, as a Magitek spider robot, would serve as the link between Omega (the original spider robot) and Omega Weapon (a more organic life form). It's likely that the devs of all games in which this thing appears all allude to the same thing, but the distinction between mechanical and bio-mechanical happens to coincide with whether or not Weapon is included in the name. That is to say, "Weapon" as a proper title, not "weapon" as a regular noun.
Edit: OR implement both Omega and Omega Weapon as separate entities. OR if we could get an official statement on the matter...