According to FTVLive Don Lemon will be getting the 11PM time slot at CNN starting in December. They write:
Lemon's show will be produced by Piers Morgan's team, led by EP Jonathan Wald, with a few staffers added. The 11PM time slot at CNN is currently running reruns of Erin Burnett's OutFront.
Word is that Lemon will also fill in for Burrnett on her show when she goes on maternity leave.
CNN has tried other shows at 11PM that have failed and have not lasted very long. Word is that Zucker has high hopes for Lemon and according to one source the show "will be given ample time to try and draw and audience".