Sorry, but with the literally thousands of choices, variables and variations currently in the game this would be impossible even if I wasn't a solo dev on a weekly update schedule.
(Also, just clicking through all the "Did you do X or Y?" options would take about 30 minutes for players skipping to Act Three.)
There's a reason why even AAA studios don't do this in the RPGs they make. The best EA could do with the Mass Effect series was to set up an entire website where you could specify only the most important decisions, to create a save file for you to download and use :P
Viewing post in Corrupted Kingdoms (NSFW 18+) comments
The Genesis DLC was released a year after the original release of Mass Effect 2, and was only initially available for PlayStation 3. So the rest of us had to make do with the website I mentioned, and places like http://www.masseffectsaves.com/ :P