They already did that, twice.
The DRM on the PS3 lasted from 2006 until at least 2010 - and even today, as I understand it, online play is disabled if you refuse a patch that closes the jailbreak security bugs. Perhaps effective DRM is possible, it's just taking a lot of practice.
What's more, in the past media distribution was on physical disks and players weren't on the internet, so software couldn't be upgraded. The future is obviously in downloads and streaming, which will enable a bunch of new things.
Key rotation will be much simpler as vendors can just issue a compulsory automatic upgrade. As a different download can be prepared for every customer, there's no need for keys to be shared by multiple customers. Every download can be watermarked so anything that does get out can be traced to a particular downloader.
So I don't think the failures of the past indicate it's impossible for DRM to ever work.