I think not. See, Helia has already appeared in the forth season. I doubt he'll get a major-cool make-over anytime in the near future. Granted, there has been edits done to the characters since the debut of this poster, but the only thing Helia has in common with the guy on the poster is the hair. So, that leaves us hanging. Who is he? Can we all expect a new character? Well, I'll watch the third episode and see if he shows up!