Spikes and Toxic Spikes already don't work on Flying/Levitate pokemon so they'll obviously be useless in sky battles. The problem, like always, is with Stealth Rock because of the-

>Pointed stones floated in the air around the enemy team

-shit. I have a feeling that sky battles will be even more stealth rock infested than the normal metagame and Skarmory and Bronzong will be on every team. Also:

>Metagame where 90% of the competition is eliminated automatically.
>Charizard still sucks.