Last year the deadline was extended right up until the first of January. Is that likely to happen again? Because I could do with the extra time instead of trying to rush something.
Submissions always stay open indefinitely! you can submit any time basically, so don't worry about rushing it. We'll keep self submissions open until end of year as well like usual for convenience, and then once that kind of submission slow down we move to submission links done via the discord (you post your game, I give you a link to add it to the jam).
So yea not a problem!