Maybe i am part of a small group but at lvl 62 and onward there is zero intensive to level if you have all the possible drops from the adventures, which is very easy if you leveled doing ali babas and not using mini adventures...

With that in mind after 65 or so it get insanely hard to lvl and after 70 the numbers are just impossible without giving up for doing the same adv too many times...

So maybe have a continuation of the ali series that we get drops from the aladin and the princess adv and starts a new super hard series?

This would make the game more interesting and if balanced right an adv could need 5-10k of new units and a few days to finish and of course give proportioned xp.