Paul Wesley spoke recently about whether Stefan will continue his pursuit of Klaus in the last couple of The Vampire Diaries episodes this season.
Wesley tells TV Line:
Stefan may just say, ‘You know what? F— this guy.’ Klaus has become a little bit of a staple in this community, so it’s really more about getting Klaus to not be so much of a threat. I’m not saying he will [abandon his quest] but I think that it’s a possibility.
Stefan seems like he’ll be too busy with Elena now anyway, winning back her trust and battling his Ripper demons!