There are others that were kind of tied up in the end, but left some room for a better ending though, just can't remember off the top of my head. Would need to go look at my list of stuff I have watched to remember.
Oda Nobuna Yabou
Boku wa Tomodachi ga Sukunai( a 3rd season)
Monogatari(season 3 with better story than season 2)
IS(aka Infinite Stratos)
Fate(another season, another grail war maybe future or past)
Hyouka(definitely needs one)