Do you think EA will include missing DLC (EP/GP) content in a Stuff Pack?

Yes because enough people will still buy My First Pet Stuff that they will profit on it and that's enough to encourage them to do it again. I see Seasons coming towards the end of this year and I can totally see them doing something similar with it. I can't necessarily see them selling four seasons in separate packs but I could see them leaving out rain or storms or something like that so they could sell it in a game pack early 2019