Quoted from zaki:i was told there are code updates coming for meticalla and aerosmith.
And you believed them?
It's obvious the only thing Stern is interested is the machine which is currently on the production line. They don't give a s1ht about any previous games they are not intending to build in the future. Once they are out of production; they are "out" of planned updates. The only time is when a design comes out as a vault... then they may do one or two updates to the art or something.
IE spider man -> spider man "comic book"