honestly i think this is an impossible task for lego to do with a minifigure sized scale( and to me thats what legos all about. the world around a lego man). seriously. go watch toy story 1 and take notes. take notes on everything that is in anyway possible to make with minifigures( wich are the toys, not Andy). comapre your notes with mine:
podium talk( give news to toys that the Bday party was today)possible price:$15
Army men spy on Bday party.(includes playskool radio thing, jumprope, and armymen)possible price:20$
Arrival of Buzz(space ship box type thing Buzz comes in)possible price:$10-$20
Pizza planet crane game(rock shaped crane with green aliens)possible price:$50
RC, Buzz, And Woody(scene where they chase the moving van((van not included))) possible price:$20-$30
5 sets for 1 movie. not a lot to work with. however i havent watched the 2nd movie and taken notes on it. so perhaps they'll rely more on that.but now that i think about it most of it revolved around things like the toy stand, the fat guy, a yard sale, a plane,a toystore, and an elevator! again, not to minifig scaled items!!!