Someone called Ady has converted Hail Caesar for fantasy. It's not the first, as a friend of mine here in NZ released one a few years back, but this looks pretty good nonetheless.
It's called Shadow Storm and is presented as a PDF which updates/modifies certain sections of the HC rules. And he has army lists. Lots and lots of army lists. Looks like really great work and I can't wait to have a proper read and perhaps try it out to get a game in soon. I'd be angling towards Hail Warmaster. :)