To see Abin Sur and Sinestro duke it out in space for the salvation of the universal timeline that Flashpoint has altered is a treat. Add a very well drawn Cyborg and you have made my day.
Sinestro wants to take Flash's power to undo Flashpoint and make it in his image where Arin Sur lives once again. It sounds straight forward but Abin Sur must be eliminated first. Hal Jordan does not become the Green Lantern since Abin Sur is rescued by Cyborg and the US government.
The Flashpoint timeline is exciting and bring unexpected consequences and relationships making the DC Universe that much interesting.