There's a list of known lost/stolen molds here
http://tfwiki.net/wiki/Mold there's no real way to know for certain which ones were actually stolen, though most say that the G1 Dinobots were definitely stolen what with the sheer number of fake G1 Dinobots there are out there.
There's also lots of stories of different MP molds and/or CAD files being stolen, what with the accuracy of some of the fake MPs, but it's mainly speculation on those.
On topic, considering the price and how little different MP11SW Skywarp seems to the Hasbro release I can't really myself picking this one up