User blog comment:Jopjopjop/Volume 19 Spoilers/@comment-176.92.243.100-20150531190948/@comment-26209278-20150601222627

I think it'll be possible for a fourth season to happen. They've set up the events for it (Sairaorg wanting a RG, and the "Mysterious" Longinus device), they just need to secure the funding in order to go ahead. I feel the results of this season will be good enough to carry on for another season at least...