User blog comment:Dryuuu/Agravaine and Morgana's awkward relationship/@comment-4832945-20120120035749

I think there will be at least a few references to Agravaine. Probably by Arthur since Morgana didn't care about him at all. His death was a bit rushed in the final episode, and I don't think he'll appear in Series 5. Unless there is a flashback episode, when Merlin get's stuck in the past.