Probably not something that desperately needs looking into at the moment, but will there be character nerfing/buffing in the future? Out of curiosity, a friend and I checked the level 20 stats of all the characters in the game so far (and the level 10 stats for certain classes to see if the comparisons changed much). We had some interesting results. Using the Swordmasters as an example:
Level 10 stats
Guy: 39 HP, 13 Str, 3 Mag, 23 Skl, 28 Spd, 16 Lck, 8 Def, 6 Res Joshua: 42 HP, 16 Str, 4 Mag, 25 Skl, 26 Spd, 13 Lck, 8 Def, 5 Res Mia: 41 HP, 16 Str, 5 Mag, 26 Skl, 28 Spd, 16 Lck, 13 Def, 7 Res Edward: 36 HP, 13 Str, 3 Mag, 23 Skl, 24 Spd, 14 Lck, 11 Def, 3 Res
Level 20 stats
Guy: 47 HP, 16 Str, 4 Mag, 28 Skl, 35 Spd, 20 Lck, 9 Def, 8 Res Joshua: 50 HP, 19 Str, 5 Mag, 31 Skl, 32 Spd, 16 Lck, 10 Def, 7 Res Mia: 48 HP, 19 Str, 5 Mag, 32 Skl, 33 Spd, 20 Lck, 15 Def, 8 Res Edward: 43 HP, 15 Str, 4 Mag, 28 Skl, 30 Spd, 16 Lck, 14 Def, 4 Res
At level 10, Mia is literally the only Swordmaster worth using. She outclasses everyone else without question. But at level 20, things change a bit: Mia is still probably the best Swordmaster to choose from, but Guy has 35 Speed, the highest possible so far (shared with level 20 Matthew and Tana btw) and thus giving him a decent niche. Joshua is mostly outclassed by Mia still, but the differences other than Def aren't all that notable, so using him out of personal preference is acceptable. Edward, meanwhile, is terrible at both levels: using him as a Swordmaster instead of another is just a handicap.