Did you know that Leprechauns 2 and 3 weren't at all what you expected them to be? Yes, the Warwick Davis horror films originally had distinct stories and screenplays.
If you want to know what the Leprechaun movies might have been like, you can watch Decker Shado's video about them. It's an interesting Warwick Davis Leprechaun look at how two very different movies might have turned out, and it's definitely worth seeing.