It is similar to the Witnesses as far as your description goes, though I am not very familiar with JW's beliefs to comment further on the similarities.

My only point was that this is an old idea (that you need a body to function and that you get given a new body of some wondrous sort upon death), and not one contrived as an escape from the physicalists death blow. The debate is over and done for me, and I as you see the moves of the dualist as always failing to substantiate the additional substance.