
I know what you mean -- it feels better to have something booked and out of the way, if you can manage it. And you have seen that your onsite stay worked well for you last year, so there is value in staying onsite again!
I'll certainly let you know if I hear anything about onsite discounts first -- although, last year, others found out about discounts way before I did! So you may see some threads pop up about discounts on the board at some point.
The current discount that is going on lasts through, if I recall, 9/27, I think? Or is it through 9/26?
In any case, I am expecting there will be some sort of new "Fall discount" that kicks in after that -- maybe covering a couple of weeks in October and then random weeks in November and December (and the time frame you're looking at is usually included in discount periods, or at least the Sundays-Thursdays are, while Fridays-Sundays may not be discounted).
If I am right and a new discount kicks in sometime after the end of September, I am thinking it might be announced in early October-ish or so. Maybe sooner, with any luck, but you know how
Disneyland operates.