I'm a huge fan of Diablo's lore and was happy to see many of the characters from the original game show up in Diablo III. However, it doesn't seem like there are very many references to Diablo II characters besides the ones in the main questline. So far, I've found:
Warriv's corpse in a random event with a little lore book
But not very much else.
Are there other allusions and references to, or appearances of, Diablo II characters in Diablo III?