I...don't know what to think about Skarner. I'm sure he's getting other changes, but that looks incredibly stupid. For one, the "take this point and get temporary vision" thing should be for Skarner's team, not when the enemy takes possession. That doesn't sound like a reason to pick Skarner, it sounds like a reason to not pick Skarner.
But even beyond that the video as disheartening. The crystal around the red buff barely even covers the red buff. So if the enemy pulls it to the right, I would lose my bonuses when contesting? But surely, no players will ever think of doing something so devious. I don't want to jump the gun here but how do I know that the Baron and Dragon crystals aren't on the ramps immediately below/above them, respectively so that if the enemy teams are positioned to the left or right of the buff location Skarner has the same problem as always?
I really like the idea of the zones in general, but fuck it, just make them permanent, "if you fight in these areas, Skarner will fucking murder your shit". Or better yet, make it so Skarner can plant the damn crystals and as the match goes on more and more of the map is covered.