Killing off free repos is not going to happen. That would be a suicide move on the level of the Digg redesign, or Tumblr's porn ban.
It kind of would be good for everyone if they did do it though. Need to get rid of this monopoly, and maybe people will discover that there are alternatives with actually good workflows out there.
They are owned by Microsoft. When has Microsoft ever had a good idea?
Microsoft has suicide-ed bigger than Digg.