There is no reason to think the Ravens won't make the playoffs in 2016. If we had multiple seasons like this one, I would say we have a long way to go, but this was our only losing season in 8 years. When you look at all the injuries, bad breaks, close losses, and out of character errors, this season was simply a fluke.
The defense played much better in the second half of the season, and the offense was playing well before Flacco got hurt, despite the fact that we were down to 3rd string at all of our skill positions, which is extremely unlikely to happen again. The o-line struggle with injuries but played much better in the second half as well. It's nearly impossible to get through a season without any key injuries, but even if we brought back the same team, a reasonable healthy offense and defense would put us right back into contention. Add to that the 6th pick in the draft, plus we should get Perriman back, so it will be like having two 1st rnd picks, and the 2015 season will just be a blip on the radar.