We rolled new speed estimates out to the website on Friday. If a CO is VDSL2 equipped, locations that are closer will see higher speed estimates. The maximum Fusion speed is for sites within 1,000ft, which can deliver up to 75Mbps for the single line service and up to 150Mbps for the X2 service.
The actual speed record to date is a customer achieving 160Mbps/85Mbps down/up bonded sync with Fusion X2 service at a location in Ft. Bragg. Here's their speed test result: http://netgauge.ookla.com/share/143054758.png
Regarding VDSL2 upgrades for existing customers close to COs, we're still pushing the cards to more COs, and dealing with some bugs, and haven't get the process designed yet for these migrations either. We're working on it!