Warwick Davis portrays the major role in the Leprechaun film series. Although the first drafts of Leprechaun 2 and Leprechaun 3 had distinct plots, the final versions were quite different.
Decker Shado, a YouTube user, has (blog) given us a better idea of what to anticipate. Earlier this month, Shado released a video in which he discussed his first thoughts on Leprechaun 2 and Leprechaun 3.