Quoted from littlecammi:Apparently WMS did not keep all their original cabinet art or else it has deteriorated. Because Rick has stated in posts here on Pinside that: "The cabinet art will be decaled and will be 'new' artwork which will be 1200dpi scanned and touched up from a really good cabinet" and "Hi-Res 'new' decals created from a very nice cabinet that was sawed apart and scanned and artwork done to it" will be used on MMr.
That's because as part of the BW sale, IPB got the original screens to all the cabinet artwork (the remainder that wasn't thrown out and still useable) who then contracted out to PhoenixArcade to make new silkscreened decals using those original screens where possible.