Flying Dragon Lizard

The flying dragon lizard right now lives in a moist and wooded area where it eats only ants and termites off trees. Then when it is in danger, it jumps off the tree and starts to glide to safety making an easy escape. I predict in the future that due to climate change, the icebergs will melt and it would flood the entire world including the habitat of the flying dragon lizard. So what would happen to this creature? I think it would evolve to have a flatter tail that is stronger so it can glide through water. It would not come out of the water much because it has gills. It will jump out of the water when small fish are near to hide, then attack their unsuspecting prey. When in danger, it jumps out of the water and glides to safer waters using its tail.