If/when the dub returns to Toonami is TBA, but, there is a new message from a certain Gundam pilot.
While the first run of Gundam Iron-Blooded Orphans is wrapping up on Toonami and the Adult Swim programming block is preparing to replace it with Mobile Suit Gundam Unicorn RE: 0096, English dubbing has gotten started on the currently running IBO season 2.