When will supported cabled modem list be updated?

Hello,

I was looking at the list of supported cable modem list and I realized that since the update to the plans, where the ultimate plan is 500 mb/s and the ultimate classic no longer exists (been renamed), that the list hasn't been updated. Does anyone know when this update will occur as I can't buy a modem supporting the 500 mb/s plan unless it's a gigablast supported modem.

Appreciate the help!