What will be pricing to switch between versions? What will I have to pay if I get Professional now and decide to switch to Platinum later? Or in the other direction, will it be possible to switch from Platinum to Professional later?
I own X3 Producer, but for what I'm doing as a hobbyist it's a bit oversized. When going with Professional, I could keep all the Producer instruments and effects, I just would not get the new Platinum things like VocalSync and DrumReplacer, which for sure I don't need. I will loose only Pow-R dithering and QuadEQ fly-out, not sure if this is really worth $100 a year on the long term.
While I'm here, my opinion about the new membership system is rather neutral, after all it's not that a big change as it may seem. Upgrading from X3 to the new Sonar is pretty much the same as upgrading before, just with some unknown upcoming extras. But keeping membership after 12 months is different. It will be paying for something that is at least partly unknown, upcoming features will not be announced too long ahead. This requires more trust in the company from the customer than providing upgrades with known new features.
While this may be no big issue for professionals and enthusiasts, hobbyists like me probably may rather tend to give membership a break and only catch up with new features from time to time as they see fit. But then, this is not that much different than before again, where some people were upgrading immediately for each new release, and others were waiting for sales or skipping a few versions to save money. Customers still have the choice to pay full and have the most actual version, or to pay less and get new features later, maybe missing some extra content.
Overall, this is much better than a subscription system, but still a bit risky considering that customers will have to pay up front to renew membership with having only vague information about what they will get for their money. Except if they wait and only get a new membership when the already released new features are convincing enough.
Finally, I wonder what will be the higher discounts: the discount to keep customers staying a member, or those to convince them to return being a member? I guess both will happen. And will it be possible to renew or rather extend membership before it is expired when there is a special discount?