Hereby we, the Release Team, present a draft KDE 4.0 Release roadmap which has
been discussed on our mailinglist the past few weeks. It’s an optimistic schedule
that aims to release in late October, based on 3 Beta’s and 2 release candidates.
If you are dying for KDE 4, then this will be worth a read. It looks like we will see the final release in October, but won’t be receiving all the features hoped for at that time. Alpha will be released next month with the first RC destined to hit at the end of September.
Source: GMANE