The studio does promise "more updates and content" are planned for PC, but doesn't clarify what that 'content' is. No 'Super Sports' DLC for desktop racers.
"While we are certainly committed to providing the best possible game experience and ongoing support for our PC community, (as you have already noted) we have a limited amount of resources that makes it so that we are unable to deliver new content to all platforms," a spokesperson. Criterion has been patching the PC game.
"We sincerely apologize for any inconvenience, but on the positive side we do have more updates and content on the way for PC players--look for news very soon." Officially this means no future DLC released for Hot Pursuit will be heading for the PC.
This situation is almost identical to what happened with Burnout: Paradise, although the 'Ultimate Box' did bring some of the new content released much more was excluded. Hopefully fan outcry could convince them to change their policy.