Hello! I think you misunderstood the point of my post. You wouldn't be using the schedule function because, as you said, everyone would see it. And the schedule function doesn't work when you're in the new series info screen.
With a draft, you wouldn't be able to see any episodes or series in progress. Otherwise, it would defeat the purpose of it being a draft. As I said in my post, This would be great for episodes, yes, but it could alsp work for series you don't want to publish yet.
Because even scheduling means that you're going to release it soon and it gives your readers something to look out for. The draft function would make this hidden to prevent mixups.
So in effect, it's for your eyes only. There would have to be a reasonable limit on series you could draft, of course, to prevent clutter, but that's overall what I meant.