Hey, and welcome to Android Central!
This all depends on a lot of things. When are you looking to upgrade? The Note 6 isn't going to release until mid July 2016. If you don't mind the wait you will also have to take price into consideration. Will price matter? The note 6 will probably be around $1000. The price for the note 5 right now is around $900 now. You could probably get a discount at Costco. I was looking at phones at Costco once and to be honest they don't really give you that much as discount that makes it worth it to buy it from Costco. I would stick to buying your new phone from Verizon wether it be the note 5 or 6.
In MY opinion, (if I had the money) I would wait for the Note 6. But this all depends on how it looks, feels and how big it is and how it operates. I would probably wait for the note 6 to come out and watch reviews and make my decision then. (I've never been disappointed by a Samsung phone)
Cheers ~Brando