@ BilliSVT don't change it if you don't want to. It's okay to take into consideration your readers'opinion, but if you don't feel like changing it, then don't, you will get hurt otherwise. It's your story, if you don't like it, you won't even be able to finish it, it could make you sad. Do what you feel like <3
Besides, if you end up writing an ot7 ff just clarify it in the description, the same if it's an ot6 ff, that will make it clear for everyone, and for your subscribers you could write a post explaining the situation and how you are dealing with it. I wish you the best!!