I just received the proofs for Republic to Empire today, and they look fantastic! If all goes well, we will go to press next week.
Republic to Empire is a set of Napoleonic rules by Barry Hilton designed primarily for 28mm models, though it is adaptable for other scales.
You can see a preview of the rules at quindia.com - and for discussions, be sure to check out the forum at leagueofaugsburg.com.