There are 2 major hurdles we have to overcome with a 340B being included as part of V2. FMC and moving map with flight plan/waypoints. Even if Jim started making an FMC today, you won't see a beta until, likely, 2020.
The changes in V2 will be X Plane 11 dedicated flight model. PBR textures done from scratch. Re-modelled aircraft, also done from scratch. More features. FMOD sound.