Here are some of my favorites from 2016 (a few of these might have come out in 2015):
1. Purity, Jonathan Franzen
2. High Dive, Jonathan Lee
3. The Sympathizer Viet Thanh Nguyen
4. The Sellout Paul Beatty
5. The Nix Nathan Hill
6. Swing Time Zadie Smith
7. Here I Am Jonathan Safron Foer
8. Jerusalem Alan Moore (not sure if this is really good, really bad, or both, but it is certainly ambitious).
I also heartily second Sawyer's recommendation of Seveneves.
1. One of Us: The Story of a Massacre in Norway--and its aftermath Asne Seierstad
2. Weapons of Math Destruction Cathy O'Neil
3. The Romanovs: 1613-1918 Simon Sebag Montefiore
4. I Contain Multitudes Ed Yong
5. The Fall of Heaven: The Pahlavis and the Final Days of Imperial Iran
6. Black Flags: The Rise of ISIS Jody Warrick
Sawyer's Pinker recommendation reminds me that I need to read it! Looks daunting, though.