I remember playing Age of Eagles a few years ago in a multiplayer game. A very enjoyable set of rules as I recall (although I'll admit my experience of Fire & Fury has been rather different).
I might suggest though that being an established author with a well regarded ruleset under your belt gives you quite a leg up when it comes to digital sales, especially when compared to say someone who is starting from nothing and has to work their way up. I think of the advice of Richard Clarke from TFL who says that nobody takes a ruleset seriously unless there is an edition in hardcopy. As someone for who would love someday to publish their own rules, it's daunting to do so with the knowledge I'll be joining any number of wannabe rules authors on Wargame Vault!