TLDR: A Mograine should be added. If he’s a paladin make him an assassin, or a specialist if he’s a death knight
So I’ve seen some posts for Mograines floating around, and I wanted to add to them. My proposal is to take either Darion or Alexandros and have them be the base with the other as a skin. If you wanted to get REALLY fancy you could include Renault as another skin as well (he was the Mograine from before the scarlet chapel dungeon rework… aka the OG “arise my champion” dude), maybe one of the recolors of Renault could be an homage to the new guy, Durand.
My vote would be to have him be either Assassin or Specialist depending on if Alexandros or Darion were the base hero respectively. As Uther was less offensive with the light than Alexandros it would make sense to make him a Ret paladin. However, if Darion was the base, a case could be made to make him a Specialist similar to Xul. Especially since Darion is a death knight (unholy to use WoW specializations), things like summons could be a part of his kit (I saw someone mention summon gargoyle). If the Mograine character was released as a paladin one of the heroics could be the Legion Artifact ability, now talent, Wake of Ashes