I have three stories scripted and thumbnailed out. Each story is a multi-parter. Going by my current output speed it's about year and a half worth of content. Perhaps more if I chop a few things to keep with a semi-consistent panel count.
I will (should) have the free time for the next year. Which why I'm doing it while I still can.
People like it, great. They don't, well, that's their problem.