You'll probably never get a direct answer to whether he wanted the series to end like this, but there's quite a lot of evidence to go by, even as late as the girlfriend comment chapter.
Actually isn't the latest evidence we have, Kakashi saying Sakura's feelings had changed ?
"and Sakura i reckon you're feelings towards Sasuke have changed since that time... even if you still like him it's probably a different feeling". From chapter 675
14 chapters from the end...