I like most of the localized names, they seem to fit for me. I can't wait to see what other neat names they come up with. One idea I've seen people come up with for Lutz's localized name is Howie, which I think would be amazing if it was the case.
Infinite Lodestar and Great Lord seals would be nice.
They could even be given to you as a reward for beating a map that contains all the DLC classes at that time as enemies.
(Imagine generic Lodestars that aren't Marth)