I would rather see them remove Oathbreaker and instead introduce an "anti" Paladin class. Then change losing your "oath" so that once you lose it you become a fighter and your done. Then all you need do is not allow a Paladin to be used at ALL in the respec tree unless you are already one.
Ha! That's the old school way it was handled. "Oh you broke your Druid/Paladin/Cleric - Bond with Nature/Oath/Your God disowned you? Congrats you are now a fighter"
