@lord-salidor
So this is to help clarify this belief or notion of an "improved" version.
There is no "improved" version of the game. The game on Xbox is the same exact game on PC. Its the same exact version of game.
The only difference is that the coding on the xbox has the menu options for graphic manipulations turned OFF and most if not all of those settings are pre-determined and capped.
This is pretty much the constant for lots of games which is why backwards compatibility has never been a real issue recently.
Backwards compatability was an issue in the past because of the actual hardware reading the disc's or games.
Example the games for Ps1 and Ps2 - The Ps2 was clearly powerful enough to run Ps1 games but couldn't because of the hardware and the discs themselves. The scanner however was not manufactured to read and decode Ps1 game discs. Which is why most of the time the only games that were backwards compatible were the ones that were released right the time the new gen came out. It was planned and they optimized the game discs to run on Ps2.
However consoles are pretty much just a title now. There are no "consoles" per say, just PC's with different labels on them. They all run off the hard-drive and are installed just like games are on PC.
So there is no "improved" version of the game. There is never an "improved" version of a game. Its just settings that are already in the game being turned up.
What you want to ask is "will we have access to the higher settings already available in the game".
Hope this helps, if you already knew all this and I just wrote a wall of text for nothing well then.......POCKET SAND!