The course of the NFL Lockout has meant that the perception of free agency have had to remain fluid. After Judge Nelson ruled to lift the lockout it seemed as if the 2010 rules governing free agency would be in effect. With the recent ruling to permanently stay the lift of the lockout containing wording that makes the appeal appear to be an almost certainty it looks like the only road to the 2011 NFL season is the called New CBA.
While nobody knows what the new CBA will hold it is likely that restricted free agency will go back to the 2009 version. I couldn't find much in the way of info or rumors on this, but I did find this from Peter King of Sports Illustrated:
it's very likely that when a new CBA happens, unrestricted free agency will revert to the original rules -- if you're not franchise- or transition-tagged when unsigned after four or five years, you're free.