I don't know the exact amount I have left on my EIP, but I know that December will be the last payment since I got the Note 4 in December of 2014.
I am very intrigued by all of the improvements in the Note 7, but the price tag is the one downside. Of course, if I do get it, then I'll do it on the EIP because there is no way that I will buy it upfront.
I think I will get the Note 7 once I'm done with the EIP for my Note 4.
Far and away, the most interesting features to me are the new display features, the IP68 rating, and the new S-Pen features.