YongNuo have confirmed the newly released YN-560 III Manual flash has a Group Function, usable with future new radio triggers that will support this Group Function! That means the new trigger will also have to be compatible with the popular existing RF-602 and RF-603 radio triggers.
Is this the FIRST Manual Speedlite with REMOTE MANUAL POWER Setting Built In? –
Even more interesting than a new trigger and Groups Function, is the possibility that the YN-560 III may even already be the first simple Manual Speedlite with Remote Manual Power Setting built in, which many strobists have been waiting a long time for!
This is pure speculation at this stage as YongNuo would not confirm or deny this. Though I can almost smell a Remote Manual flash now in one form or another! The YN-560 III could already be the first one, just waiting for new trigger to unlock this capability!
The Group Function ties in nicely as that would be needed to set different power levels on each flash, or group of flashes.
If confirmed, this brings up some interesting questions. Many people have already commented about compatibility with the new and very popular YN-622C TTL radio triggers. Should YongNuo have concentrated on compatibility with the YN-622 and not with the ageing RF-602/603? If they can bring those two previously incompatible triggers together, could they even then bring all 3 together?
In any case this is certainly a very interesting development!
See more details on the new YN- 560 II release HERE