i'm not sure it's possible for you to bring it back, but your earlier comments made it seem as if you had intentionally not allowed it.

if this is the case, then it's a huge mistake. there is no point to not allowing overleveling. your earlier argument was to prevent people from using only a single class or two and obtaining eva that way. but lets face it, that will take substantially more work than leveling all the races. before, leveling each race to 21 gave eva. to get those levels over only a few classes would have taken so much xp it's not even funny. there is no downside to implementing overleveling. it's not like an overleveled class is any more powerful than a maze out class.

also, as it is now, there will be a point where the rank stops working. once someone maxes out everything (unlikely, perhaps. but just as unlikely as someone taking a single race to lv. 900 for eva) they'll stop gaining any sort of level-base rank.

tl;dr bring overleveling back, it's retarded not to have it