Next season could be the last for The Big Bang Theory, Modern Family and The Goldbergs

The Hollywood Reporter

All three network comedies have  multi-season renewal deals that expire at the end of the 2018-19 season. In The Big Bang Theory's case, according to The Hollywood Reporter, "WBTV and CBS have had some conversations about potentially continuing the series beyond season 12, which would require signing the stars to new mega-deals to return to the comedy from Steve Molaro and showrunner Steve Holland, though a decision could be made post-upfronts."