The new album is called .5: The Gray Chapter and, as you can see, the name is dedicated to Paul Gray.
There are two new band members, which we know nothing about. It's rumoured that Alessandro Venturella is the new bassist and Jay Weinberg the drummer, but these rumours are not confirmed.
As you know, Slipknot change their masks for every album. We've seen many faces during the 19 years of their existence. And now, thanks to Buzzfeed, we have a really good look at the new official masks of SlipKnoT for the upcoming album.
Some are not as new, but others are really creative. The masks of the replacing members are not individual like the others. Instead they are a reminder of the past.