I was joking lolLol, how about no!
They don't have anything like the status of the cosworths - just look at the price of the previous Mondeo v6's - pennies
The ST220 is hardly going to be worth pennies though as its the last proper engine for put into a Mondeo before 99.9% on the road turned into asthmatic 140bhp taxi engines. They will have some value in the future. The car dealerships seem to think so with some of there crazy prices over the last year for car's with less than 70k on.
http://www.ebay.co.uk/itm/2003-52-FORD-MONDEO-3-0-ST220-5D-223-BHP-/252055675528?hash=item3aafb06288
http://www.ebay.co.uk/itm/Ford-Mondeo-ST220-in-Performance-Blue-/221841821197?hash=item33a6cd8e0d