Looks like they are officially releasing them in eBook format accoring to this statement linked from the latest TOR/Forge newletter
Quote:
Tor will be releasing the ENTIRE Wheel of Time series in various eBook formats beginning with the release of The Eye of the World beginning on October 27th. Each book will be released in series order on a monthly basis after that. The text of the books has been optimized for the ebook reading experience, and retain all illustrations and maps from the physical books. Pricing is not yet available
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the linke to the whole announcement is
here.
So looks like only another year and a half until they are all available as ebooks - one a month.