I am actually dreading the announcement. This year has been one of the worst for the sims 4 so far. I have finally reached the point where I have to decide to not buy an EP due to the bugs and unwanted features. (high school years will be the first EP to deliberately skip since living large for sims 1!) The only good thing this year was werewolves and with that GP EA was really, really fast in moving on to high school years. As if they were ashamed of a properly working pack. And then there was the forced high school years update... :(
For the sims summit I totally expect more bugs, more intrusive features we can't turn off, a massive amount of kits for the rest of the year,.. Or possibly a new system of forced updates.
I just hope the game remains playable after this announcement.