The Shark is the one I want to see
Morrison is currently writing the screenplay for Ezra Miller's Flash movie, so I'm sure he'll have plenty to say about both Barry & Hal when the time comes.
If that script actually makes it to the screen and is successful, I wouldn't be surprised if Warner Bros. asks Morrison to collaborate on the long gestating GLCorps movie...
more like artistic license, I remember Byrne wanted the tattered Superman look so he made us something about nearness to body gave clothing limited invulnerability, because back in Golden or Silver Age his clothes were indestructible Kryptonian fabric so you never saw the tattered Kal look but now you could if he came against a villain tough enough. Gone were the days of flying through the sun to clean off his costume. What better way to show battle damaged Hal than through a tattered uniform even though it isn't really cloth anymore? Maybe it is a subconscious representation of how tough the battle was in Hal's mind affecting how he appears.