By Kevin Sweeney For some teams, like the Bengals, reservation prices for the Super Bowl have soared after Week 4’s wins, but for other teams facing injuries and back-to-back defeats, playoff hopes are sinking further. We’re a month into the new NFL season. Which games have shaped the playoff picture most? Week 4 featured a few surprises (Geno Smith and the Seahawks scoring 48 points), big comebacks (the Bills’ rally from 17 down against Baltimore) and much more. Here’s a look at the biggest storylines from the week that impacted the playoff race, using insights from SI Tickets’ postseason res…