The color pallette is a conscious choice though. There are plenty of colorful 3d rpgs on PS3/X360. Tales tends to look low-color.
I think even Xillia was more colorful. Sometimes the Tales teams go with these really low color palette and I've never really understood why. Going for a manga-ish fantasy look I guess? Like Berserk and stuff.
The only thing they could really benefit from is being on PC so we can force 16x AF because the whole "ground textures turn to blur 16 feet away" thing is really noticable everywhere. I think that's one of the benefits of a lock camera in Tales, by pointing downward at 3/4th angles and stuff they can avoid the lack of AF blur. I would say PS4 would fix that but there's been a ton of PS4 games with no AF either so who knows. PC definitely would though and Tales ports to PC are inevitable thankfully now that Japanese Steam games are taking off worldwide and Namco Bandai is already one of the major publishers on board. I'd bet 50/50 that the next mainline Tales game comes out for PC day and date with localized console version.