I have been asked if I intend to provide any future support for WAB, and the answer is-some.
My intention in providing additional army lists was to encourage new players to buy the rule book and ensure the continuation of the game. Now that is no longer achievable (because GW will not agree to make the book available for download, I am sure!) The impetus has diminished.
I have just uploaded the chariot wars lists in the supplement section. I will occasionally add new lists for comment and refining and I would encourage anyone with an interest to do the same- once list contents are agreed upon I will happily provide the points costings for them. I have decided to do this, rather than release the points structure, since it will provide a simple way of determining that a list is "official", which seems to matter quite a bit to many players.
If there is sufficient interest, this will enable us to gradually provide a "complete" set of ancient and medieval army lists.
I do have both the rules and AOA in .pdf form but will not release them without GW agreement. I will ask if this may be done but as above, I don't think this is likely.
I could easily develop a new game that would play closer to WAB than either WAC or COE, since I did a fair bit of work on this when it appeared that WAB 2.0 would not reach publication. However as both of them appear to be good games I'm not sure there would be any point in muddying the waters by introducing another competitor (though admittedly one that would sell for a very small sum). I'll ponder that some more.