I reckon going down could be all part of a plan myself mate....Go down, re-structure the debts, get a nice drink to move into the olympic stadium, loose all the dead wood kick-a-balls hanging round the team and the big money/no return has beens, couple of seasons re-building, come back up and resume normal service.
They would be selling Upton Park for redevelopment too, all add up to a few quid.
Just a thought