if and I say if they will ever release a remastered version of Like a Prayer it will not include any additional material as Pat Leonard confirmed that only 1 song (supernatural) was recorded and not included in the album. As per the blue rays....forget about the virgin tour, they cannot even find the master (and all those songs not included ended up in the editing floor as confirmed by the director) so the only good quality they can use is from a laser disk! the live songs from TOD were filmed in Paris, but she does not longer own the rights for this material and again god knows if it still exists.
Moreover people buy less and less dvds and blue rays as they prefer to stream (for example they have announced that The Simpsons will not longer be available on DVD because of that!).
So to cut the long story short....wishful thinking but it ain't gonna happen I'm afraid!