DVD/Blu-ray extra features query (contains spoilers)

There are a couple of different versions of this mini series released on DVD. I know that one has no extra features at all and another has some extra features which include an audio commentary and footage of the original version before Michael Caine was cast.

I've read that during the making of this mini series at least four different endings were shot, including one in which The Ripper was George Lusk and another in which The Ripper was Police Commissioner Arnold. Apparently this was done to keep the real identity of the killer a secret and only the director would know which one would be used when it was televised.

Does anyone know if there is a version of the DVD or Blu-ray which includes these alternative endings as an extra feature?

If the original footage from before Michael Caine being cast has been kept then surely they'd also have kept the alternative endings?