Recently, VH1 Classic has been airing updated versions of Behind the Music. The channel has already shown Metallica and Judas Priest. From what I know, Genesis will be the next episode and Def Leppard and Motley Crue are coming up. This has inspired me to make a wishlist of episodes that I'd personally like to see "remastered".
First aired: 1999
What's changed: The band broke up in 2003 only to get back together in 2005 and release Rehab the following year. Also, Kevin DuBrow died in 2007.
Guns N Roses
First aired: 2004
What's changed: Chinese Democracy is out.
The Mamas and the Papas
First aired: 1998 and 2002
What's changed: Denny Doherty passed away in 2007
First aired: 2000
What's changed: Black Ice
First aired: 2002
What's changed: Honkin' On A Bobo, Guitar Hero game, and Steven Tyler's future with the band