Be patient, I am sure the seasonals will proliferate again. At their current rate, we could see the same amount of seasonals within the next few months.
And for the record, I am most certainly do not endorse the bold. Perhaps it is my trader mentality rearing it ugly head again.
I know you're not endorsing that, it was just an example. Also the fact that they might add some more seasonals in future still doesn't answer the question as to why the last lot were removed.
Again, this is where a simple communication blog would help a great deal. "Hey folks, we'll be removing some of the older seasonals this week to make way for x". I'm sure people wouldn't be some peeved then, but they give us nothing so people just have to guess and excuse them.