From BleedingCool.com: Paul Dutton, Calgarian and Animation Director on Sylvain Chomet’s the Illusionist is developing Philip Pullman’s Spring Heeled Jack as a Feature:
It’s the plan that I direct this film. I’m developing it right now with a partner here in Calgary, Alberta and Mr. Pullman has given me the rights to shop the project around. He, of course, wanted to make sure his book will be respected properly. Selling 2D to distributors can be a real tough slog because nobody wants to bite, but I think the Oscar nomination we just received for The Illusionist is going to help an awful lot in that respect.
More at the link.