Just released RC4. I think this is really close to the stable 2.0 release. If you have a favorite issue that you think is release-blocking, please bump it and/or tag it with Critical so it doesn't fall off the radar.
Of course, anything that is RTBC will be reviewed for 2.0, so the best way to get something into 2.0 is to post patches and get them reviewed.
Note that I don't plan to make any more large architectural changes at this point. Trying to get this stable, so will be addressing bugs more than feature requests now.