No, it wasn’t originally written to be the series finale.
Warning: This post contains spoilers from the series finale ofLegacies.
The Salvatore School lives on… even ifLegaciesdoesn’t.

Danielle Rose Russell on ‘Legacies’.Ben Adams/The CW
Regardless, they were planning for the season 4 finale to feature a fair amount of closure.
All that being said, Plec does feel that the episode works as a series ender.
That’s the nice thing.
At least now we don’t have to attempt to figure out how to top it."
He has such integrity for that character.
In the end, Klaus returned, and Morgan has no regrets.
…And so is Caroline
Klaus isn’t the only familiar face in the finale.
And she wouldn’t be alone.
“So [her daughter] Florence is featured in that end scene.”
That was so new this year and it was so good.
They were just getting started and now the story’s over.
That’s one of the heartbreaks," Plec says.
“They were just warming up.”