I haven't experienced any fading or bleeding. I haven't worn my 8AAs with any white sneakers though, so I imagine that it's possible given the right conditions, color, humidity... I never experienced it with Zathan 8AA either, and I wore that with white kicks all the time.
My Trouleg 8AAs have definitely become my favorite Diesels - to such an extreme degree that they're just choking out everything else, even my other Troulegs. I just wish that I got the memo two years ago - now it's like I'm making up for lost time.
8EU has definitely become my second most worn pair behind 8AA. It's not really a good wash - I've laundered them once and they're noticeably faded despite being run cold with Woolite Dark. But the fit - the fit - is spot-on perfect. I plan to dye them with Rit Dye just to get some of the darkness back.
As for 8AA stretch - The waist and seat have definitely given far more than any other part of jeans, and everything else is roughly the same as it was after the 3rd wear - so I think we're experiencing the same stretch factor. We'll have to compare after a few months to see if either of us has noticeable "progress" in the fades department.
On a sidenote - It's amazing how much this wash changes after it's been washed and worn several times. I have a used pair of Trouleg 8AA that comes from the same lab on the same day but looks really different from the unwashed pair. Most distinct is that the new pair has a real sheen to it, and the washed pair is completely dull.