The second film is Carpe Demon, an adaptation of Julie Keener's book, Carpe Demon: Adventures of a Demon-Hunting Soccer Mom. Columbus will be writing the script for that one himself, which is great news when you remember that he also wrote both Gremlins films and The Goonies.
The third film is perhaps of most interest to horror fans specifically. It's called Killer Pizza and Hatchet and Spiral's Adam Green is currently set to pen (and possibly direct) the adaptation from Greg Taylor's book. With a title like that it may sound like it's a Charles Band film about a, duh, killer pizza, but it's actually about a pizza joint that's just a front for monster hunters. That's a pretty great premise if you ask me.