Jarsve
What I was thinking of in making a bundle 2.0 file is if the track contains plugins that is not in Cakewalks then freeze the track to the bundle file. Or If the frack has no plugins or just plugins from Cakewalk keep the track unfreeze. And maybe some way to select this in advance.
I see where you're going with this...not just a way to save Cakewalk projects, but a file format designed for sharing and collaboration. I think there's merit to your idea, but it would take a lot of thought to figure out the best way to do this. For example we have AAF and OMF; I think you're considering something more along those lines, but capable of transferring more project-specific data.
It would help if DAW mixers were treated more like plug-ins, with a standardized way of expressing levels, pan, buses, and sends. If Mix Recall was an industry standard, think how cool that would be!