JRRStark

Further to the recent episode where the White walker king appears to be the Nights King, Is there a link to Benjen. If the Nights King was originally a Stark, Is Benjen this 'new' Nights King. I can't help thinking everything north of the wall is Stark related, (For than matter it will transpire most things south will soon be as well. I have no evidence for this, But he has to be somewhere? Thoughts

The Others started returning before Benjen's disappearance. Wouldn't this White Walker Night's King have been around at the beginning to lead them?