-ISPs as watchdogs: The ISPs will be forced to "proactively" police all user-contributed materials for copyrights. At that point, many of the world's most popular sites won't be able to exist as they do now, such as YouTube or Photobucket or Flickr which will be impossible to regulate given that thousands upon thousands of videos and pictures are uploaded every hour.
-Three Strikes: As in the UK and France, the "three strikes" piracy laws will be in effect, forcing ISPs to cut off multiple time offenders from the Internet after two warnings. If you are accused, you do not receive counsel or a trial.
-Worldwide DMCA: "Notice-and-takedown" letters must be adopted worldwide, requiring ISPs to take down any "infringing" material. There needs to be no evidence or trial, if the material gets flagged, it must be taken down.
-DRM: Full prohibitions on breaking DRM, no more "fair use." Archival presentation (backups) will be a thing of the past.
This is just what we know so far. I can't imagine it could get any worse though.