From what I read science doesn't think of entropy as a clock that simply runs out (of energy) and makes everything come to a full and eternal stop though.

"It is impossible to conceive a limit to the extent of matter in the universe; and therefore science points rather to an endless progress, through an endless space, of action involving the transformation of potential energy into palpable motion and hence into heat, than to a single finite mechanism, running down like a clock, and stopping for ever."

The way I see it with layman's eyes, there's likely to be some kind of implosion kind of reversal at some point in time and so everything can start from point zero again. Remember how there has got to have been a state before when our universe started to expand and 'waste' energy. In fact, that state quite likely must have been some kind of equilibrium as well that somehow got kick-started into where we are now.