Being married to a software database programmer, and having met studying Computer Science, I'm all for anything that makes maintenance and upgrading easier. One software for all their digital/wifi mixers is one way to raise the level of software expertise on the product. (Without hiring a large programming squad.) They will always be working on the two software products. (Master and My fader apps.) They are probably putting most of their time into My Fader right now. When that's done, I would expect them to go back to Master Fader for it's first update. The bugs aren't big and the functionality of Master Fader is very good. Wouldn't expect any additional features on that update. (And with us still getting used to new interface, new features aren't necessary.)
I wouldn't be against paying for the next upgrade. (Wouldn't have minded paying for this upgrade. We got a lot.) Just one thing to think about. If we were to pay for upgrades, the incentive to do them would go up and the value of our DL1608 would continue to climb. As long as this is only a cost for Mackie, they will eventually want to drop it. (Hopefully not for at least 5 years.) On the other hand as long as all their new digital mixers are tied to ipads and Master Fader, this could go on for a very long time.