Yeah, Marsh was strangely absent, but I suspect he will come back in the next book. And yes, Wax was a bit absent from the book, Sanderson obviuosly tried to flesh out the other characters a bit more, and Wax suffered a bit for it :cheese But then, he was the one who got to walk on holy ground ;)
I must say that although I really enjoyed the shout backs to the original series, the kandras are getting a bit old (pun intended :look) And Sazed has definitely changed from being the holder of two Shards for so long, the Sazed in the original series would never play people around like that...