Luke Witkowski, Thomas Vanek, Niklas Kronwall, and Jimmy Howard are all current Detroit Red Wings that are set to become Unrestricted Free Agents. Most fans would probably agree that it would be surprising to see Vanek come back next year for a team that is looking to become younger and give chances to those on the brink of making the opening night roster.
It would also seem unlikely that Witkowski will be re-signed unless they would like to keep his gritty, in-your-face style of play around for certain nights.