Although the long-running cable-TV series “Psych” will come to an end March 26, that may not be the last that audiences see of fictional best friends Shawn Spencer and Burton “Gus” Guster, the president of USA Network said Monday night.

Chris McCumber said the lead characters of the comedy, which was launched on the cable network in 2006, may appear in a movie or a special in the future.

The...