The way I read this - you do not need to do anything whatsoever - until such time you actaully NEED to start a sub - like a drastic OS change OR you actually want/need the latest updates to existing items OR want to get something new.
The days of cherry picking are over for sure but my existing single license for all my stuff appears to be normal and functioning. There is nothing indicating I need a sub or anything at this point.
For me - it was clear to see that these guys were just waiting for the chance to formalize this - because that lame a** Update Plan was nothing more than a sub in cheap clothing all this time.
VP