@djwaglmuffin It should be an entirely new work. We are currently planning on doing a lot more Writers Camps in the future, and we do have plans for some of those Camps to allow submissions of older works. But for this round of Writers Camp, you can refer to the guidelines posted in the newsfeed:
The story you submit must not have been published previously on Tapas or elsewhere, either as a novel or a comic. In other words, your story should be an entirely new work, previously unpublished in any form or medium.
@Harmony-S-S As far as I know, we don't have any other contests in the works at the moment, aside from the Incubator program. That said, I can't make any promises that there won't be overlap with Writers Camp and any contests that might come up before the submission period closes on August 5th.
@minerrale You can definitely include illustrations! Just make sure that you also adhere to the other Writers Camp submission guidelines and our content guidelines.
To answer your other question, no, you can't submit a novel that you have previously published, even if it has been edited. See the rule I quoted in my reply to @djwaglmuffin above.