Waiting for the top multiplayer PC games to come out may be difficult, but don't let that kill your hype. If these are not games you are excited for, don't worry there will more than likely be something you'll love.
There are going to be plenty of multiplayers that allow you to hack, slash, and cooperate with friends. From sci-fi sandboxes to a fantasy co-ops, 2016 will bring a lot interesting games to PC.
Just remember; keep your keyboard close and your friends closer.