Yeah, I looked it up just now. It sounds interesting, and it's also Universal Century.
I still believe Toonami will air Twilight Axis (the sequel to Unicorn) someday, as it's a mere microseries and won't permanently occupy a 30-minute timeslot.
Hell, maybe even DURING the commercial of a stretch of IBO would be a good idea? After all, that's what AMC does with the "Fear the Walking Dead" microseries during The Walking Dead, and that doesn't seem to confuse anyone...
But more likely than not, if they ARE getting TA, it would be better to air it on the block during an otherwise Gundamless stretch.