17th of April - that's the tentative date set for the release of Ubuntu 14.04 LTS according to an early draft of the next release schedule



From OMG! Ubuntu!:

Ubuntu’s siblings, Xubuntu, Lubuntu, Kubuntu & co, will be available for testing sooner, with two alpha and beta milestones available to them.

Alpha 1 - December 19th (for flavours)
Alpha 2 – January 23rd (for flavours)
Beta 1 – February 27th (for flavours)
Final Beta – March 27th
Release Candidate – April 10th

With the final release scheduled for:

Ubuntu 14.04 LTS – April 17th

  Ubuntu 14.04 LTS Release Schedule Revealed