No one actually said it was going to have ICS, I actually speculated that on MacRumors and maybe in The Verge comments and I guess people are going with it now. LOL.
- The new interface will be similar to the Amazon Appstore refresh from last week. I'm predicting they're ditching the carousel due to cache issues in the current Otter launcher, so no more dead looking wood. It will still have the nice big icons, but I'm pretty sure it'll be in a much nicer layout.
- No more Kindle Fire Edition apps, the menu is now normal sized.
- Special Offers will only be on the launcher at the bottom, and on the lock screen (interactive still/video with a button to launch the site, deal directly in Silk, or using the Amazon store API). They will introduce a new Amazon Local app to go along this.
- Original Kindle Fire will not get the update due to the poor original hardware choice and broken drivers.
- At least ONE model will have HDMI, bluetooth, front facing HD camera, volume buttons, and a working dimmer sensor.
This is all MY speculation though after looking at what we have so far.