Maybe just return Behests as another, lesser, means of experience gains? Or make leves purchasable like Ventures? Probably not even that, honestly. Leves seems decently well balanced as is.

If you're actually doing all your dailies and weeklies, you shouldn't feel particularly time-gated. It's just one of many modes of experience growth, after all, and its power and ease really should be balanced against frequency as not to push out all those other means of leveling.