will dynafaces be part of JSF 2.0

[Bala Karthik]

How exactly the ajax is going to be added to the JSF 2.0

[Tim Holloway]

I'm not sure it should be. At the moment there are a number of successful ways to do AJAX in JSF, but they're not alike enough to cause me to want to see them melted down into a one-size-fits-all standard.

[Sergey Smirnov]

You can look into the Spec to see what will be in JSF 2.0:
http://jcp.org/aboutJava/communityprocess/edr/jsr314/index2.html