I'm going to risk a necromancy warning to say: excellent work! I've been searching for something like this for quite a while now, and I'm happy I found it.
Are you still working on this Presentdent?
I took a look at endhammer too. It looks pretty good, though there's a lot of... /tg/ going around. Not necessarily in a good way.
A couple of days ago I decided I don't want to let the WHFB world go. Probably I'm just too old, and I've got too much time and money invested in that broken world. Don't get me wrong, I'm no AOS-hater. I find the fluff decent, interesting even. I love the nods to the Old World, the returning characters, the idea of a major offensive by the good guys etc. But it's not WHFB, and it's very light. I realized while thinking about an empire civil war campaign that there are a lot of things you can't really do with the AoS fluff because it's so light. As an example there's nothing as "intricately" detailed as the elector count system (or even the Empire, with all it's rich history) in AoS. There's little to build campaigns on except the most generic of stuff (like "my chaos warband v yours") and the immense scale of the universe makes most battles a bit pointless.
Problem is GW nuked the old world, so nowSethwe have to pick up the pieces. I'd love for there to be a version of a post-ET world (with some necessary changes to the ET timeline of course) that has at least some community backing. Doesn't have to be universally accepted, I'd just be nice if the setting had a decent amount of followers. I've been tinkering with various ideas on how to make the smallest possible adjustments to the ET story to allow for the world to continue existing, and not having every single named character ending up dead. Definitely going to use the things in this thread for inspiration and if I ever produce anything I'll be sure to post it!
I've also been considering the problem of a world that never moves forward due to lack of new official fluff. But when you think about, that's really no different then what we all got used to playing WHFB. Save the odd campaign here and there, and those campaigns you can easily do yourself with your gaming group (or even worldwide campaigns in 9th age or something). And given WH: Total War, I'm not entirely convinced GW is ready to let this IP go. We're getting at least one fresh injection of background material with the TW game, and the likelyhood of expansions is high. The likelyhood of future games, or other sources of background material (even perhaps books) seems equally high. It won't move the timeline forward past ET, players will have to take responsibility of that themselves, but it will continue to flesh out the world.
Anyway, that's what I hope.