Everyone is realy looking foward to this ep, let's just keep our fingers crossed that it actually airs. A new spoiler at CGEF shows that it could be a shipper episode too
...
When Leela gets swept off her feet by Mike, an aide to the Mayor, Fry falls into a deep funk thinking that she could never like a non-important guy. Adding to Fry's funk, a bizarre genetic abnormality is discovered that qualifies him for a mission to save the world. While on this mission, we learn what really happened on Dec. 31, 1999, the night Fry was frozen. Meanwhile, Mike says "no" to a free day at the skating rink, and Leela realizes Fry is much more to her than she ever knew.