I think tha M96 Zeus is worth consideration even if you have M92.
The biggest advantage over M92 is of course Android that let's you install e.g. Kindle software. I always was a big fan of Kindle's "Smart look-up" functionality where you tap a word and you are automatically redirected to Wikipedia e.g. . I read that Zeus will use google play store so Kindle and other apps will be available.
I never used much note taking functionality and (correct me if I am wrong) Zeus has no stylus but has touchscreen - for me this is a HUGE advantage over M92. I have M92 and KPW2 and I must say that interacting with touchscreen in KPW2 instead of using stylus with M92 is much faster and more natural. Especially highlighting, zooming and looking up words and phrases in dictionary. For me the only advantage of stylus is being able to write and I don't write almost at all.
Last but not least better processor, more ram, M96 is bound to be faster than M92. And in my opinion more than 2 years old M92 feels a little slow, especially compared with KPW2.
Not big fan of built in lighting, I can live without it and I would rather avoid paying extra for it.
I think that M96 offers a lot and is a worthy replacement of M92. For more than a year I was looking forward to device that would offer both best of M92 and KPW features: touchscreen, smart lookup (invaluable for students!), at least 9'' inches screen, relatively fast, handles many formats,handles pdfs well, open architecture. M96 seems to tick of all of these features.
I am awaiting first videos showing M96 in action, to see how it works in reality.
Normally I would not hesitate to buy it, but forthcoming 13.3'' makes me wait a little bit longer. If it would be M96 with bigger screen and acceptable price tag (not like Sony $1100 13.3 '' device which handles only pdfs...)I would happily buy it on spot.
And I like where the Onyx Boox company is going with the use of Android: concentrate more on hardware development and innovation with affordable price and use already available software for reading from third-parties.
Just my thoughts