Not saying Wilson will go to the 8th round, but it's easily possible he's at least cheap enough for a flex or first bench spot pick-up if Bradshaw is still the clear starter. And to see the division of workload the last couple games when Bradshaw and Wilson were in the lineup will keep his ADP at a relative bargain in the 6th round range or possibly even a 7th round steal IMO.
I know what your saying, I agree with you about Spiller(he went 8th in most of my leagues including me getting him in one of my dynastys) but I see some differences between FJax and Bradshaw. Jackson was the top RB in the league last year until he broke his leg and before that he was pretty reliable on the injury front. A broken leg is also kind of a freak injury and not the recurring foot and ankle issues Bradshaw has been dealing with. Combined with a pretty strong pre-season there was no reason for owners to not think that Jackson would be back in the lead role and handling a majority of the carries.
On the flip side Bradshaw has the injury bug, his production has been in decline over the last three years, and there is a ton of talk about him not even being retained by the Giants. I would say going into the season the door is a lot more open for Wilson to take over the starting job than there was for Spiller going into last year.