Some of the feature that are now part of Subtext 1.9 will be refactored as plugins in version 2.0:

• Community Credit submission
• Akismet spam filter
• Share this post control
• Feedburner site stats

Together with this plugins, a few others will be released as part of the core:

• Link Lift text ads
  
• Ping Services
  
• TextLinkAds feed advertising
• etc...