I dont understand why people think Willy Wonka is a better theme than WOZ. It surely was not as popular a movie as WOZ was. Also, every woman that sees WOZ, especially the 75th anniversary machine wants one. It is a great way for any male collector to bring his female counterpart into the hobby and to stop the nagging about what a waste of money pinball is... Of coarse that is not the case with every female counterpart...
On another note, I would much rather see someone make a Nirvana game rather than making another GNR game. Just my opinion... Perhaps even an 80's greatest hits machine, or 90's greatest hits... maybe something interchangeable, or song packs you could buy via USB cards that could change the music and integrate into the game to change up some of the call outs and music....
I also think that although Toy Story is the more popular Pixar movie; The incredibles would be a better pinball theme... As long as it is not Cars(I would rather have a colonoscopy than see another Cars movie with my son after the 3rd one ...), or Finding Nemo....