Ellis has also been tweeting some more about working on Wastelanders:
Taking a break from solving Fourth Act Ov Insolvable Doom. Hello to Jessica who met Joss & I in the street while we were pacing in woe.
Fourth act solved. Now we drink, for tomorrow we must write shit down etc
I doubt Warren will share any story details, but I imagine he will continue to share these little snippets while working on it.