If anyone's going on Leviathan when it releases, send me a tell! I'll be playing with a few friends, but we're friendly and welcoming of new people. I'm not on Leviathan at the moment, though.
On another note, some of these boss battles are pretty damn complex. I'm really impressed, especially for mid-range. I'm extremely excited to see some of the tricky designs for end-game monsters. As long as it's not like Pandaemonium Warden or Absolute Virtue. But, if they do things like Salvage Zhayolm Remnants, it will be perfect.