The UT Press seasonal book catalog seems to always be among the last released to the public, but the wait is always worth it, with a bunch of new titles of interest.
Hewitt and Bergeron's Confederate Generals in the Western Theater, Vol. 3: Essays on America’s Civil War is scheduled for April. No content description yet from the press page.
B.F. Cooling will finally complete his Kentucky-Tennessee trilogy with July's release of To the Battles of Franklin and Nashville and Beyond: Stabilization and Reconstruction in Tennessee and Kentucky, 1864–1866 . His treatment of the Henry and Donelson campaign remains my favorite on the topic, but I never did get around to reading volume 2.
The venerable Voices series also has another volume coming out soon, Last to Leave the Field: The Life and Letters of First Sergeant Ambrose Henry Hayward, 28th Pennsylvania Volunteers, edited by Timothy J. Orr.
Finally, there's also a revisionist history of Andrew Johnson's Civil War and presidency from the scholar editing his papers.
On a general note, April appears to be the busiest publishing month of the season. Not surprising given a certain ruckus over a federal rock pile 150 years ago.