While it wasn't thought possible due to licensing rights, it appears that NECA will indeed be turning their 7" video game style Keaton Batman into a proper version of the character from the film.
This figure will be exclusive to the 25th Anniversary Bluray of the original Tim Burton Batman film which you can purchase direct from Warner Brothers Home Entertainment here.
This is apparently a brand new ebay strore with zero feedback at the moment, which, even for a large company as the seller, can still be a bit of a sketchy situation. At this point, I'm not 100% sure if you can order this version of the Bluray through other outlets or if it will be available at retail. If anyone hears word, feel free to drop in a comment below.
You can preorder it from the link above and it will ship out on or after 12/9/2014. Cost is $29.99 + $10.45 shipping.