I think it also brings in the possibility of what we've been discussing all year long, which is the addition of an early Safety to play on the back end more. That would allow them not only to rotate safeties and play different nickel/dime combos, but it also allows Clark to play in the box more, almost as a dime linebacker.
I did mention earlier in the offseason that I wouldn't rule out the possibility that the Ravens don't feel they have "enough" at inside linebacker, and may look to add in the draft. Queen's pretty close to a 3 down player, but Harrison and Fort certainly aren't. And I think, even in dime coverage, they'd like more in the box.
Would also allow Clark, Elliott, and Queen to rush more in 3rd down packages, which I think has to be a part of Wink's gameplan. He knows like we all do that we pretty much can't possibly have a pair of elite rushers, like a Dumervil/Suggs combo, who are going to get home a lot. Pressure is going to come a lot from schemes and blitzing. Adding another safety or maybe even a Corner (which you alluded to as a possibility) opens up a ton of schematic possibilities. Namely, you can put 4-5 guys in man coverage and bring everybody else, and still feel pretty good about your chances.