I don't see a Spooky 2.0 being released. The only thing we know that's being released this year thus far is the Thememaker Tool Kit. And with the new theme kit coming out we will now have the ability to create static and animated props and scenery pieces; the ability to create and upload items like clowns, zombies, witches, wraiths, ghosts, etc which will eliminate the need for themed packs like Spooky 2.0, Adventures 2.0, Studios 2.0 and Vintage 2.0.
Now I will say this, I could see them releasing a Dark Ride DLC that focused on improving dark ride elements, new types of dark rides, and maybe even creating walk-through attractions making the queue itself an attraction.