Well that's the crux with pretty much all AVNs - I'm waiting on Eternum, Ripples, Harem Hotel, Hero's Harem Guild, The Headmaster, That new Teacher, Cosy Cafe, and soon this game will extend the list.
I guess it's just like waiting for the next season of From or Extraordinary Attorney Woo
Though the cliffhanger of Eternum Episode 8 was a real kick in the balls :D