No, the changes are too unpredictable to apply them automatically. It will however be possible to convert existing maps. In the best case the effort for this is rather low, in a worse case it requires some tweaking of the map, which is easy in principle, but we still have to develop the tools to be able to do it easily. That's why we are searching for someone with unity experience as mentioned here: https://forum.faforever.com/topic/6881/call-for-volunteer-map-editor-development-in-unity