There are calls from the newly set-up Ebbsfleet Urban Development Corporation to extend Oyster coverage to Ebbsfleet.
In the Standard,
http://www.standard.co.uk/business/m...internalSearch
"One priority will be to forge a tram link between the station and Bluewater shopping centre. Another is to extend the current Oyster card system out to Ebbsfleet and provide cheaper fares for the 17-minute ride to St Pancras."