Parmandur
Book-Friend
Maybe: time will tell. A Forgotten Relams slipcase for, say, the Sea of Fallen Stars would make a lot of sense.I think Perkins/Crawford said something more recent than that - as in, within the past month or two.
Something along the lines of they've already got the next setting release lined up and ready for announcement and that they were excited to talk about it once Planescape is out, presumably whenever they finally drop next year's release roadmap.