Not a supporter, but I am warming up to the idea of a Tales rep getting in and I'm also now seeing a Tales rep as a possibility instead of blindly dismissing it like I once did.
While I still doubt we'll get one, I'm leaning towards us getting a Tales rep if we get a Namco rep for a few reasons.
One is that a Tales rep is probably the most wanted Namco character. ChronoBound has mentioned very strong demands for a Tales rep in Japan, although they can't agreed on who should be in. Lloyd Irving also seems to enjoy mild popularity within the Smash Bros. community at the very least in the West and has the benefit of having the general consensus there. Compare that to Pac-Man in that a lot of his "demand" is based off the expectations of him getting in and not because people actually want the character. I think Sakurai wants to stay away from "expected but not wanted" third-party character which describes Pac-Man pretty well, but a Tales rep have avoided this.
Another thing is Namco interest. While they seem to be leaving the fate of a Tales rep up to Sakurai, Namco has still expressed interest in a Tales rep whereas we have seen no such interest in Pac-Man. Normally a lack of interest publicly expressed in a character wouldn't hurt too much since Sega never publicly expressed interest in Sonic and Konami never publicly expressed interest in Snake, but the thing is that not only has Namco not expressed interest in Pac-Man but that Namco has expressed interest in a Tales rep getting in (and even entertained the idea of a Tekken rep by stating that if there's enough demand that they would push for one, not that I think it would happen). There's the off-chance that Namco is hiding Pac-Man's appearance, but considering that they have expressed interest in a Tales rep, I'd say that a Tales rep is more of what Namco has in mind for their third-party character.
And while this is a stretch, there's also the fact that the Tales's battle mechanic is similar to that of Smash. Third-parties are known for being incredibly difficult to fit in and a Namco rep won't be an exception, but Tales's battle mechanic can help with smoothing the translation of a Tales character getting into Smash. I have a feeling that the reason why Namco expressed interest is because of Tales's game play mechanic and there's the off-chance that Sakurai would agree.
Again, I don't consider a Tales rep likely, but those are some good food for thoughts here. If we do end up getting one in, it'll be either Lloyd Irving due to the West having a general consensus on him or Cress Albane, who is seen as the face of the franchise (at least in Japan) and appears in the Tales logo.