Just an additional update for today... A new scan (plus one more) shows that not only Tales characters make that cameo in ToH, but also some other characters in Namco's games, particularly the Idolmasters game in the scan (Scans found by Atlas).
For TotW:RM2, here's a new scan (from Koori) just showing previously announced characters Chloe, Jade, Kyle and Chat. There are two other characters, the scientist Janis and his assistant. With the Mana supply decreasing, Janis invented a sub-energy called Larvae, and he's set to make it the dominant energy souce around. Aside from that, you'll see that the pre-order bonus has been confirmed, and a new screenshot of the opening, showing Arche and Raine cooking (and again, that Leon shot).