A new report indicates that most of the regular versions of the Samsung Galaxy S4 and the HTC One will be combatible with their Google Edition counterparts' software. For now this applies to the GSM edition of these devices and basically means that if you have the normal/skinned versions of these devices, you will be able to flash the Google Edition firmware to them. Verizon and Sprint owners will have to wait for the community to figure out how to make it work on their devices.
Source: AndroidAuthority