[Farscry]

For the PnP version, the Epic Level Handbook was just released recently, which supports basically infinite level progression. (Though the farther you go, the more ludicrous it gets)

Hopefully, they'll be able to incorporate the stuff into the engine, but the way levels are handled post-20 involve different calculations for attack, saves, etc., which would probably entail a different code base for epic level-ups as opposed to the 1-20 range.