Haven't heard of anything being in the works. I think if it was a classic, it would probably get more attention for restoration; as it is, I'm guessing it's unlikely that it will ever see the light of day, but who knows.
If memory serves, the laser disc version apparently had some of TP's footage in it's Extras section, but don't quote me on that.
("Big Bertha" is a laster disc on-line store, if you have access to a laser disc player, or knows someone who does.)
