All beta projects are confidential and covered by Non-Disclosure Agreement. You will need to sign up and agree to the NDA before you can see the proposed changes. Nothing can be discussed publicly until the final product is released due to the fact Autodesk is a publicly-traded company and we're prohibited by federal law from discussing future functionality (which may or may not ever be released).
Regards,
Toby Smith, PE, LEED AP
AutoCAD MEP Product Manager