- The court has ruled that reselling doesn't violate copyright, but nothing prevents a software vendor from forbidding the reselling in it's license. The court didn't force vendors/service providers to permit reselling.
- The court has not demanded that vendors enable the reselling technically.
- The court has limited its ruling to computer programs, and excluded media like ebooks, video, music and the like.
So in effect, this will change: Software vendors will have to change their licenses to prevent reselling.
While I'm not a lawyer, it seems abundantly clear that the court considered taking money for a permanent licence to be a sale. That brings first sale rules into the picture, for example, "[t]he first sale in the Community of the original of a work or copies thereof by the rightholder or with his consent exhausts the right to control resale of that object in the Community."
Oracle's licence agreement did clearly say that the licence was non-transferrable, and they lost.
Therefore, even if the license agreement prohibits a further transfer, the rightholder can no longer oppose the resale of that copy.