Bobby put it best. Alex Smith is in love with Bryant, and they have developed tremendous chemistry in the preseason- to the benefit of Bryant, but to the detriment of Vernon Davis, Eric Johnson, and Arnaz Battle who have not seen many balls thrown their way.
I look for Bryant to have similar yards, maybe 1,100- with about 6-7 TDs and about 75 catches.
However, it all depends on Alex Smith. The offensive line, RBs, and receivers are good enough that the Niners could actually have an above average offense if Smith plays well. However, Smith clearly has a lot of work to do. But, in the outside chance that Smith breaks out, he could make Antonio Bryant into essentially a Plaxico Burress last year- a guy that people didn't expect to do as well because of his young QB.