How to trade in for a iPhone 6s?

I have a iPhone 5s and my carrier is Verizon. My contract doesn't end until December. Can I trade it in now for iPhone 6s

You can in december, 5S is actually worth around $200 still if in good condition so you get quite a bit of money back if you sell it.

Sell it you'll get more money

Doubt it, but can still make a query.

Verizon will start sending you messages and emails when you are eligible to upgrade your phone.
You can contact them, but they will tell you that you will have to terminate your contract and sign a new contract to get a new phone. This will include early termination fees and the purchase of a new phone. The early termination fees will be around $100 to $200 with the amount of time that you have left on your contract.

I have a brilliant idea: CALL VERIZON and ask THEM!