As the title suggests, I'd like to see a War Walker added to the costume options for the Aether Shop. The obvious concern about doing this is the War Walker's sheer size, which large even when compared to the Longbow Cataphract, which was already included as an Aether Shop costume.
The solution is to simply reduce the size to a less obstructive, player-friendly size, which was already done with the Longbow Cataphract costume, as seen here:
The only obvious issue I could see with reducing the size in this way is that the War Walker model likely has more complex geometry than the Longbow Cataphract, but I'm curious whether it is actually an impossibility at this point. I use the Longbow Cataphract on a character with weapons because I want the character to be a large-scale mech that uses weapons, but unfortunately all of the costumes that are similar to the Cataphract (such as the Vanguard HVAS and PPD Enforcer) lack any hands, which can be awkward at times. It'd be nice to have an option for a large robot with hands for a change!