Warbringer
Explorer
From what I could tell of the interview with Courney Solomon his argument seems to be that having Warner Brothers' backing and resources will allow him to make the movie he always wanted to.
I get the impression that Wrath and Book were simply made to extend the rollover while he waited for big money. However, at the end of the day it will take strong characters to make the movie successful, not just some junk put together that has nothing to do with the brand.
The obvious is Dizzt with RA selling some 17million books (not all D, but most), followed probably by Raistlin and the Companions. Building a relationship with iconic characters will be crucial to building a successful film going experience.
That does require Hasbro permission (and I think they should do this anyway regardless of the "Chainmail" movie) and probably $200MM budget