Actually, the Photoshop trainers are now planning to meet up and discuss the topics, so I believe the contents are yet to be confirmed.
Probably, yes, there will be standard subjects that you have mentioned such as masking, healing, burning and dodging.. and etc. etc. However, there are more than those standard stuffs we are willing to include... such as;
Glowing skin tones
And probably few more for the creative part. I am not so sure what the other DI artists would want to bring in. We can confirm the topics only after the trainers meeting. Please watch this space.