New Seasons

For those theatres and companies which operate with "seasonal" series of plays, is it getting earlier and earlier each prior year that announcements are being made as to what the schedule will be for the next year? Or does it just seem like it to me. What about companies announcing two seasons in a row? I guess I don't have much of an opinion about it, except its nice to know of all the plans being made, all the activity happening, the second stages, etc.