Good lord there are some entitled posts here. Reading this topic makes it seem like doing anything will lose subscribers...which is probably true, people are fickle and come and go like a summer cloud.
Just do what you want as an author. There are plenty of people who aren't worth worrying about that will subscribe or unsubscribe. Tell the story you want to tell. If it isn't showing the results you want, bring it to a stopping place and rest it to possibly pick up later. But you don't owe anyone something for telling your story. And it's going to be a poor output indeed if you're writing a story out of obligation where you don't have any ideas. A bad ending can ruin even a great story that went before.
As a further little point: stories are naturally going to evolve as they go. Usually around the third chapter, they "grow the beard" so to speak and become more galvanized in direction. There will be some shifts in the story from where it starts to where it ends up; you can't avoid it most of the time. This is just how stories develop.
