Here we go. Brandon wrote a follow-up on Mistborn during his 'Me-time' after finishing ToM.
http://www.brandonsanderson.com/blog/95 ... y-Time-Off
It's somewhere in his blog :p
I read elantris a couple of years ago, before he started on WoT and I really loved it. It's my favorite stand-alone fantasy book.
When I heard he was finishing WoT I started on Mistborn and loved that as well£. I really like the way everything works in there ;D