Like you already said Crackenspine, all episodes of Futurama have already been released.
In fact there isn't "really" a fifth seasosn. Fox made 5 out of the original 4 seasons because the wanted to fit Futurama into their schedules. However, there were only 4 seasons produced and you can buy them all on DVD.
As for the movies... well I guess it'll need quite some time till they come out. They aren't even produced yet, and beside of Billy West's announcement there still hasn't been anything official said.
Welcome to PEEL BnderBRodriguez,
just to prepare you, you might find this topic closed petty soon when a moderator comes around to do so. Nothing against you, but this question has been asked many times before, and redundant threads aren't really that welcomed here.
- that is also why you should search before opening new threads. Should you need any help regarding PEEL, how to get along here, and what some things said here mean you should take a look into our FAQ, the PEELers' FAQ
. It's a nice and short read.
Enjoy your stay here edit: Whooooops I am toooo slow