User blog comment:GWAINE/Merlin - Episode 5.10 - Press Release/@comment-5659316-20121115200103

Ah, I had a feeling they were going to get back to the whole Morgana-hunting-Emrys plot when the story was ready for it.

At of fans seemed to think the writers just wanted us to completely forget about it and never intended to finish that story-thread, but I had a feeling... And he we are. So yeah.