We'll see on release day won't we? But if the demo wasn't a quick throw together why were all the options related to consoles?
Also, pictures of games have never proven anything useful when the differences will be small and/or post processing related. Look at the dirt 2 dx9/dx11 comparisons. Actually playing the game is a world of difference, but the pictures? utterly interchangeable.
With regard to texture quality, if it hasn't improved, someone will improve them over at crymod if the pc community doesn't just shun crytek entirely.
There was a patch that people with retail got, and it updated the menus/text to change press start to press enter, and the graphics option names were changed. So all of the consoles related options WERE STILL THERE in retail. and if you look at the sticky post that talks about the day 1 patch, it updates the start to enter. so once agian, the demo was the PC game, but they patched it for release to change the wording lol
Im hoping that people will be able to mod this game pretty soon because i feel the demo's q uality is what we will get on release.
Wasn't the patch applied to the demo? I'm pretty sure the retail build will have already had that sorted

Otherwise the patch wouldn't have made it into the retail version.
Still, indeed, if crytek are going to skimp on the game, they better make it moddable.
They applied the patch to the 'demo'
but the retail version (which was likely already printed and shipped at that point) would be getting the "day 1 patch" which would have those changes. http://www.gamesas.com/forums/viewtopic.php?f=35&t=9886
That tells me that the demo version that we got pre-patch was indeed the PC version.