It would be nice for TS to make this bug, a feature of the game.
Like when you reach lvl 150, you could resset the campaign, and thus start over.
It would allow players, to continue the farming of campaign, and see some benefits of actualy reaching lvl 150.
And to make things even, the token rewards, would be decreased after the reset, so instead of 5,10,15 tokens( i think) per each dificulty, they could put, 3,6,9.
And at each boss, you would recive a premium box, the 75token one.
Ocourse without lowering your lvl, as to not benefit the continuous refill of energy that comes at lvl-ing up, and thus provide endless energy suply.