Criswell predicts:
I feel it will have a protective cover, so that the owner doesn't accidentally drop it, thus breaking the delicate substrate.
They'll be a host of fonts.
The ereader will be front-lit, so that one can read in the dark, something that books do not yet have. (True, an attachment can be snapped onto a book.)
It can be held with one hand or two hands. The choices are endless!
Some readers will have buttons and some will not, depending upon one's ACTUAL CHOICE!
You can wind it up in the morning and will last a whole month, like a Grandfather Clock.
It will attach, through minute holes in one's skull using electrical wires, so that it can actually read the book WITHOUT YOU OPENING YOUR MOUTH!
The cover will change color depending upon one's mood.
It will sort 500,001 titles in 2 seconds, for those with anal tendencies *
It can be folded up and stuck in what I call a "minuscule nose case" to be anchored inside one's left or right nostril.
There will be ONE type of universal file: the AZW3Pub.
When reading PDF files, the ebook reader's steroids will automatically GROW THE READER! And, when finished, the ebook reader will automatically SHRINK, similar to touching ice to a specific body part!
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The future is a wonderful place to be. Frankly, I wouldn't care to be anywhere else.
* Not that there's anything wrong with having those tendencies.