Since the FCC just incorporated new rules for FRS and GMRS (and the other services under Part 95) after several years of comment and review, I would not expect them to revisit that part of the rules for at least 5 to 10 years or more. There are a number of previous threads here discussing the process and the final R&O published by the FCC that explained everything that they considered after receiving comments for a long period of time. I would encourage you to find those threads and familiarize yourself with the R&O and all the attendant issues that were considered. The basic summary is that digital of any kind is not allowed on GMRS. It's a dead issue.