Tales of is renowned for its many costume that the characters can unlock, and we all know Sakurai loves to focus on details and references to please the fans.
Even if we all agree that Sakurai is too shy about the number of costumes the characters in the base roster could have, I think it's a different story for the DLC, especially for the DLC.
I mean, Sakurai went full fanservice by implanting new skins and voice clips for the heroes, wich is certainly more time-consuming to develop than simple costumes. DLC are special cases, since we actually buy them and that the developing team are more focused on characters since the game is already finished, polished and released.
So yeah, even if it's not sure, we still can expect Lloyd having a few (or eight) of his alternate costumes from the Tales of games.