DC solicitations for March 2015 were released today, and it appears that the publisher is cleaning house leading up to their Convergence event in April and May. No fewer than 14 ongoing series are wrapping up in March, including New 52 mainstays like Batwoman, Swamp Thing, and several Green Lantern titles.
Read more here:
http://www.ign.com/articles/2014/12/16/dc-to-end-14-comics-in-march-2015