According to Westgate Las Vegas SuperBook, the Eagles' Super Bowl odds are at an all-time post-Super Bowl 50 low in the wake of the Bradford trade, at 100-1, a far cry from their former 40-1 odds before the trade.
A drop was probably expected. Bradford, while not an exceptional quarterback, has shown he can be an average player in the league and looked better (I know, #SamsLastSevenGames) down the stretch in 2015. With Wentz, the Eagles are getting a total unknown, and one who played at an FBS level in college to boot. Opinions on Wentz's pro-readiness are so varied that the Browns didn't think he could be a Top 20 quarterback.
So, the Eagles' future is less certain.
Interestingly enough, the Vikings' odds didn't change at all after the trade. Their Super Bowl odds stayed steady at 20-1. The season-ending knee injury to Teddy Bridgewater, the team's third-year franchise quarterback, could have torpedoed the entire season in Minnesota, which is why the Vikings traded for Bradford.
Apparently, Vegas thinks highly enough of Bradford to deem him an equal value quarterback to Bridgewater. Hmm.
If the Vikings make it to the Super Bowl, of course, the 2018 fourth-round pick the Eagles received in the Bradford deal becomes a second-rounder in 2018.
Westgate also released odds for each team's chance of winning their respective conference championship. The Eagles' odds of winning the NFC dropped from 20-1 to 50-1 after the Bradford trade, while the Vikings' odds remained steady at 10-1. If the Vikings simply reach the NFC Championship game, the 2018 fourth-round pick they traded to the Eagles in the Bradford deal becomes a third-rounder.