Thanks! I average about 2 to 3 chapters a month (writing, drawing, and eventually coding), which if you take into account there are 30 chapters in total (26 & 27 are actually 4 chapters), then it takes me roughly 12 months to complete a route. So yep, a year.
James will most likely take longer because he just has a bigger story. But I'll be working on him starting October :)