There is a big difference without Jeff Hanneman. A friend of mine used to disparagingly refer to Jeff's style as "scribbling", but I miss it. A big part of the trademark sound of Slayer. If something happened to Tom, you really would have to retire the band name Slayer. That being said, this tune's pretty cool and I'm definitely going to check out the album.
Thanks man, yeah, completely weird hearing them without Hanneman and my favorite metal drummer Lombardo. I'll have to check out the album when it gets streamed somewhere.