Westworld had its season 4 finale, the culmination of a shocking, and shockingly good season that brought many back into the world
But with the way things ended, there seems to be an open question as to whether or not Westworld season 5 is actually coming
By the end of season 4, Bernard, Maeve, William, Charlotte, Stubbs, Clementine and probably Caleb are all dead.
There are effectively two ways you can read this. In some ways, this does work as a series finale, because you can take the position that Westworld is a flat circle.
There are indications that Westworld season 5 is indeed happening and no, this is not the end of the series.