The new Philips Hue Lightguide lamps were officially announced for the fourth quarter of the year, i.e. between October and December. At the beginning of the month, however, Philips Hue was still assuming that they would be able to do it sooner. This is confirmed by information available to me as well as official statements from Philips Hue via the support channels.
Philips Hue Lightguide: Sales stop even before the actual launch Market launch postponed until further notice
Market launch postponed until further notice