Seeing as how we have a pretty big fanbase for ToP and ToS here, I bring you this:
Tales of the World: Nankiri Dungeon 3.
The Tales of the World series is pretty much a weird spin-off of the main Tales series. They feature cameos and appearences from other Tales games, in a completely nonsensical fashion.
In the screenshots there, we see characters from maybe all tales games... Mint, Lloyd, and Sheena are all in one battle, and I think I see Rutee in another. Zelos is in one, with whom looks like Farah. Kratos, Noishe, and Raine are also there. Cless is probably in there as well, as he was in Nankiri dungeon 2, where Dhaos was inexplicably the final boss.
The two silver-haired children featured in the art shots, are the main characters of this game, and were also the heros of ND 2.
About ND2:
The "overworld map" in ND2 was completely non-representive of the worlds of the Tales series, and consisted of about 9 locations from ToP. Infact, the tree of mana had a whole shrine inside of it, with these two freaky guardian chicks, which is also where the plot begins. There was also only one giant town in the whole world. Here's a pic:
From what I understand, the plot of the game was to run around and do missions and stuff. It's not a traditional "plot flow" RPG. I never got very far in it, but the battle system is a lot better than the GBA ToS. Cless only joined you for the first battle in the game, in which he somehow had the eternal sword, (despite Klarth having it at the end of ToP) and kicked the enemy's butts. I was able to have Mint stay in my party, and I think Klarth is also in the game too. There might have been ToD characters in there, but I don't remember.
Back to ND3:
This is a spin off. If you try and reason why all the characters are together, you're wasting your time. Evidently the developer just though it would be cool to have everyone together in one game. Fine by me (plus, Mint's ultra cute in these games).
None of the previous games have been released in outside of Japan, and its doubtful that this one will be too. We can only hope. Some rom hackers were working on a translation for ND2, but from what I understand, it's not done yet.
"Unfortunately, the dragon only speaks in Napalm, a curious ancient language that you don't really need to speak to understand."