Well, that's annoying. Did you resubmit once you finished the prologue? They seem to re-mention series when they've progressed enough, sometimes. They might listen and mention you need help, this time, hopefully.
i have not resubmitted, no; to be honest i am not sure what i want to do on that front. i doubt anyone will ever want to help me as long as the duration of this comic requires, and the people who do seem to want to help always seem to be the kind of people who append 'if i could draw' to the end of their offer. i wholly expect never to find anyone.
That's the sad thing about being at your level of talent. Most people who would be willing to help would just make your job harder. Many of the people with the ability to help, have their own projects already.
Best I can think of is to socialize with other artists, and hope you luck out on someone with the talent and time to help you.