Hey there!
I’m seven books outlined into a brand new ten book YA series and I’m still excited by the idea.
That’s my measure for how much I want to work on something. If, even
after all the less creative work that needs to be done on a title, I’m
still enthused about the story and want to know more myself about the
characters and the world, then I know it’s something I’m willing to
devote time to.
At the same time,
I’m outlining “Powerless” book number four! By the way, I hope you’ve
gone and bought the third book “Die Famous” by now 
And finally, keep your eyes peeled for a special deal I’m running over the holidays. That should keep you in suspense!
Tony.