When Blizzcon was announced, Blizzard used this paragraph:
Now I ask you. Why on earth would Blizzard mention of Paladins, Demon Hunters and Ghosts? To tease people? When you consider, Paladin is THE missing class in Diablo3 as well as Demon Hunter in WoW. People HAVE been looking for these classes in these 2 games for a long time. I believe there is much more than just a tease here.Paladins, demon hunters, and Ghosts who can't make it to the show in person will once again have the option to enjoy BlizzCon from home by ordering a BlizzCon Virtual Ticket, offering comprehensive live coverage of the event via a multi-channel Internet stream. Further details on the Virtual Ticket, including pricing, availability, and programming information, will be announced at a later date.