I'm always interested in digimon rps, lol. I'm afraid I'll end up getting disqualified due to my difficulty writing CSs though, but I'll give it a shot anyway. I'm assuming that Elysium is just the American/European version of EDEN, or is it a replacement? Does this take the canon timelines or is it its own separate entity? 

RP Level Preferred: As close to Casual as possible, simply because writing fluff to fill out a size requirement is difficult for me. I tend to make concise and to the point posts rather than be grandiose. 
Character Age Preferred: Well, based on the multitude of digimon series protagonist ages, I'd say somewhere between 14-24, to give a decent range.
Location Preference: Doesn't matter to me, since I know little of either option even though I live in one, lol. America, I suppose, though either way if it's supposed to be in the real "real world" rather than a constructed one the politics will be interesting.
Digimon Familiarity: I'd guess I'm in the top 10% of digimon fans when it comes to how much they know about digimon. Though I mean that only in the general sense; if it came down to specifically anime knowledge, or knowledge about Xros/Fusion, I'd be much lower. Also, just to put it in terms of the games you mentioned, I've beaten both CS and HM on Vita and have the complete edition which I'm in the process of 100%ing.

Anyway, hope this takes off, even if I don't end up being a part of it when it does.