Well, this page at M-Edge is hinting at new (differently sized or shaped models that will need new covers) Kindle models "coming soon"
http://www.medgestore.com/products/kindle/
Earlier this month, this announcement had a note that new models were rumored to have a September release - I see they have replaced that with "Coming Soon"
As to front light, an earlier thread here announced that Amazon had contracted with the US State Department to supply Kindles - with front lighting.
So ... who knows?