I’ve identified ten tickets for 0.3. https://github.com/post-forking/post-forking/issues?milestone=6&page=1&state=open
One of them, #84 is a large ticket will be accomplished over multiple releases. The biggest piece of it will be accomplished in #38, #37, and #97
If you want to help, jump on those tickets with comments. I’m also hanging out in the #wp-postforking room on irc.freenode.com if you want to chat.