The Death Wish remake looks pretty fun. But there's no guarantee Bruce Willis will have a significant role in what's currently called Die Hard: Year One, loosely based on this
comic book set in the 1970s.
But if you want to go back to the 1990s, a great archived film news site
is Corona. Here's their Die Hard 4 page
. There were many unrealized scripts. The most interesting to me was Tears of the Sun (a title later applied to another movie) supposedly set in a jungle. If Die Hard 6 is set in a jungle 40 years ago it would essentially be an Indy flick, right? Also
There were two other potential Die Hard 4 scripts floating around at one point, both called Die Hardest, both written on spec by Ben Trebilcook, and both rejected. One would have been set in Tokyo, where McClane’s son worked for the Nakatomi Corporation, while the other was set in the Caribbean, and would have seen McClane and his daughter fighting shipwreck looters.