i cant find any evidence to say so... but i did find a few petitions to bring it back!

http://www.petitionspot.com/petitions/futuramas5

http://www.petitiononline.com/fs6/petition.html

On the DVD commentary of Into The Wild Green Yonder Matt Groening and David X. Cohen seemed to leave it rather open ended.

This should answer your question:
http://www.gotfuturama.com/Information/FAQ/
There's a question regarding season 6.

as far as i know i think it might be coming back!!!

I've heard that its been renewed by comedy central and should be a new series coming soon

one of my friends says that comedy central is putting up new episods in 2010 that's why there advertising it so much.

Ive heard the new season comes in mid 2010. Such a long wait :P

I hope so and does any one think leelas hot i do