The highly anticipated LOST series finale entitled "The End" will be super-sized. NO SPOIL ZONE 

The Hollywood Reporter says that producers have shot so much footage for the senses-shattering finale that they will extend the 2 hour  last ep on Sunday May 23 by a full half-hour.

Or 13 minutes with commercials.  

Showrunners  Carlton Cuse and Damon Lindelof just completed post-production on the finale. spouting identical tweets:

"We’re done. Amen."

Lindelof also revealed recently that they had built all new sets for the time/space/up/down/this-way-and-that way series finale and that the ending will only prompt more questions.

So, sorry Losties, ALL will NOT be revealed.