The book starts with Arthas as a ten-year-old prince, and then obviously follows his path through what we saw in Warcraft III, including all of that bad business at Quel'Thalas, and Arthas' past with Jaina and Kael'thas (you don't think Blizzard would bring KT back again in WotLK, do you?). Golden promises some good looks as the High Elves, too -- "two very pivotal characters are elven," she says. Including Sylvanas? We can only hope.
The book's due out in April, sounds like it'll be a good read, for Arthas fans especially.