Whose costume is that on the left?
A name and a brief history or a link would be nice.
That is the costume of Supernova, who has been two different people so far.
Booster Gold used the identity Supernova, with that costume, during 52. He had recently faked his own death, and used this alternate identity to go back in time and try to repair his malfunctioning Skeets.
After Supernova revealed himself to be Booster Gold, Rip Hunter would give that identity, and a very similar suit, to Daniel Carter, an ancestor of Booster Gold (Michael Jon Carter) who lived in the 21st Century. Like Booster Gold, this Supernova also has no super-human abilities of his own, but gets them from the suit (which was created by Rip Hunter).
Until now, Daniel Carter's appearances seem limited to Booster Gold volume 2, and he hasn't appeared in any comic since Flashpoint.
Since Rip is talking to someone named Daniel about the "Carter legacy" I suspect the suit is meant for him in this case.