User blog comment:Broman178/Morgana's ignorance to Merlin's magic./@comment-4623180-20120108145537/@comment-4832945-20120109105757

If Mordred returns he will definitely be evil. It is implied by logical reasons. 1. After Merlin tried to kill Mordred (in 2x11), Mordred said "I shall never forgive this Emrys, and I shall never forget," 2. The Great Dragon stated that it is Mordred who will form an EVIL alliance with Morgana and kill Arthur. 3. In the three episodes he was in he never did anything good, and in 2x11 he was a main villan. and 4. In the legend Mordred IS evil, so I'm afraid the producers will definitely stick with that.