According to John Niyo's twitter page, Jared DeVries will re-sign with the Lions on Monday. The deal is for one-year, 1.7 million dollars, which is similar to the contract that was terminated by the Lions.
I think this is an excellent move, as DeVries adds veteran leadership and will be solid at depth/rotation for us behind KVB, Avril, and Hunter. Mayhew never ceases to impress me. This would also allow a DE to be picked up in the later rounds of the draft and actually develop and not be rushed into playing.