No they dont, iPad air is flawed by massive light bleeding and yellow screen syndrome. Stick to your ipad 4 for as long as you can, it's perfect.
Don't let anyone fool you, the iPad Air is better in all ways and is more future proof. If storage is more important than anything else, go with the 4. All other reasons point towards the air.
More than 1GB RAM would make it "future proof"
So no ones fooling anybody except apple with its 64bit hoop-la on 1GB RAM. Other than weight and looks the iPad 4 is just as future proof as the Air.