How long will the series last?

At least 2 seasons.

I have plans for 3.
But we shall see if there’re still readers until then and if I’m still motivated and not engrossed in another project when time of season 3 comes.

But there will be 2 seasons at least, that’s for sure. As you’ll see (very soon I hope), season 1 will end with still a lot to be answered…