From recent Eink events, I hope that these here devices will be the new kindle line-up:
http://www.youtube.com/watch?v=3jT9PJoHIgo
at 10:55
and
http://www.youtube.com/watch?v=b83dIs7S4Ug
at 3:10
Both have the same button layout, a led light on the top right and offer great features like backlit triton display or very responsive digitizer on a high dpi screen.
Also is it just me or does the Eink logo printed on them look suspiciously like the Kindle one?

Alternatively I wouldn't mind seeing the new Epson drivers in a Kindle, as seen in the first video at 11:55.
Either way I hope we will see these devices released very soon