Foggy Once GOS release for whatever Motorola phone is being targeted for a 2027 release, what are the technical limitations of supporting other Gen 5 Elite phones? Does it require special firmware or vendor customization or something specific to a given phone model? Or might it support other phones with a small amount of tweaking, like the Pixel device trees? Does it need the blessing of Motorola?
At present, nobody knows. This sort of question will be much more answerable after GrapheneOS is running on the first Motorola device. As just one possibility among many, it might turn out to be possible but not worth the effort.