Noel Clarke And Tony Lee Collaborating On… Something

A few weeks ago Bleeding Cool reported that Noel Clarke (companion on Doctor Who, writer on Torchwood, writer/director on aDulthood) was looking for comic book artists on Twitter.
Turns out he may have found a writer as well. He just tweeted;
Just coming out of a really great meeting with @mrtonylee and we are planning something very special! watch this space wooop wooop!!!
While Tony Lee was tweeting;
Just out of Soho house after the geekiest meeting ever with @NoelClarke. I could get used to that place! Anyone want to nominate me? :)
Also great to briefly meet Keith Boak, who directed some of the Ecclestone Who episodes. Nice guy!
What could it be?