Samsung Galaxy Note 6 new close to real rendered images show up. A look at new images shows that new handset will feature an identical design to the Galaxy S7 Edge.
— OnLeaks (@OnLeaks) June 3, 2016
Samsung Galaxy Note 6 or 7 (not sure yet) will feature the first-ever USB-C port for Samsung handsets. USB-C technology enables faster data transfer and faster charging.
Samsung Galaxy Note 6 screen may feature 5.7-inches or 5.8-inches display. Note 6 may include an iris scanner(Like in Lumia 950) that will enable users to unlock handset just by looking at it. These are just rumors so take it with the pinch of salt.