Charter is going to two modem tiers...50Mbps and 100Mbps service also. Existing customers stay on their current tiers unless you upgrade to this service. Currently, Charter is still offering PLUS service for addition $10, which as I understand it is going away in a couple of weeks.
WiFi service will be available at the end of July, maybe longer due to equipment shortages. This modem is going to be an all-in-one modem, similar to AT&T's gateway modem.
DOCSIS 3.0 will be the standard for all *NEW* Charter customers, Current customers can call Charter and request a DOCSIS 3.0 from them. They will either send it in the mail or you can setup an installation for it.
Also, Charter is offering DVR boxes for $5 a box now and the DVR service is $19.95 a month. With Charter's new pricing on DVR's it was cheaper to go with a regular DVR instead of multi-room ones.