Unless Sony is lying (possible), PS4 - the console - won't have DRM. PS4 games however definitely will, because some PS3 games, and almost all recent games with MP elements, already have DRM.
Some publishers will extend DRM to offline play, but hopefully not all.
Thus PS4, like PS3, is a DRM neutral platform. Preferrable would be an Anti-DRM platform, but that would be delusional thinking if you truly thought that might be the case. Xbone on the other hand is a pro-DRM platform by having compulsory elements which facilitate DRM on all games. So PS4 is much like PC in that neither platform has DRM built into the OS. Xbone is the outlier and hence is worthy of criticism.
I'll be very disappointed if Sony implements DRM beyond online pass for its 1st party titles.
What's the sitch with Wii U, can publishers put DRM on Ninty games?
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