I think we'll be more "multiple". Meaning we'll see everything. 3, 4, and 5 man fronts, 1, 2, 3, and even 4 LBs at times. We know DA likes to use up to 6 DBs here and there. Swapping Vaccaro for Coleman, we can disguise coverages and even play some cover 2... finally. With a real honest to goodness Bad*** LB in Demario Davis, I think we'll even see some 5-1-5 this year. Adding P-Rob allows us to only use 3 safety sets or big nickel when the situation calls for it instead of being a staple due to lacks on our roster. Having added Rankins, Onyemata, Hendrickson, Okafor, and Davenport over the past few seasons shows the same. All of these guys can play multiple spots in the front 7.
To sum it up... Barring injury or players falling off a cliff performance-wise, we have a complete roster on defense (with very high quality depth). We've been somewhat limited as to what defenses we were capable of manning. That's not the case this season. We should finally see Dennis Allen's defense this year. His whole defense.