There does tend to be 2 or 3 things closed that we miss in Feb. We went this year and the railroad, Splash Mountain, and Tom Sawyer's Island were closed. But it's always different. The time that we were really bummed out was a few years ago when both Pirates and Splash Mountain were closed.
In fact, now that I think about it, Splash Mountain has been closed the last 3 times we went in February. So that is probably the most likely possibility.
Just keep checking the DL website. They generally have the closures posted at least 3 months in advance.