Our actions in this vast universe are not sufficient in scale to reverse it at all. If I take say, a large empty plate and drop it on the ground, I create entropy the instant it shatters, and trying to pick up all the pieces back together, my actions only further contribute to even more entropy.
The current and only universe we live in at present will continue to expand proportional in all three axes in a forward motion from the origin until it reaches an infinite enough size that our calculators will force to give out errors, and when all the matter finally stops moving, the universe then comes to a silent standstill. If you factor in the dark energy and dark matter, it can accelerate the inevitable demise at a speed we can't easily measure but still take trillions of years to get there.
Therefore, this means there is no such thing as reversing entropy in itself, period.