Sorry yes, it has been pointed out that people couldn't reply to their threads so this has since been rectified..
At this stage I haven't been given specifics about the differences between CP and the new themes, although it is my understanding that the purpose of these new products is to allow people to buy a theme that suits, out-of-the-box, without them having to make any customizations. This in turn will make it a lot easier for the customer when it comes to upgrades as well..
Obviously if you have the skills, and the willingness to just customize CP to achieve the same result, there is no reason why you can't do this. The code is not encrypted, leaving it in your hands to customize.
I'll check these comments with the developer to make sure I'm not leading you astray - or if there are other things to consider about the new products though, just in case ;)