It should be higher next season by default.
Werth's salary goes up annually, as follows per Cots:
11:$10M, 12:$13M, 13:$16M, 14:$20M, 15:$21M, 16:$21M, 17:$21M
And Zimmerman's too:
11:$8.925M, 12:$12M, 13:$14M
They stand to lose a few probably: Pudge at $3m, Gorzelanny at $2m, Livan $1m. There's no big savings for another year until LaRoche falls off.