You may hate me right now, but what's playable in farm? Seriously.
We have gardens, we have most popular home pets, we have "village stuff" like laundry pack...
Cows? Only for milk, because we don't want to kill them, right? And they will be like bees, like newborns, because I do not think, that the producers make them more intelligent as a hamster.
Horses? Without open world we could get something like skiing area - take your horse and ride for a simhour, in the circle! Maybe some fence to train your horse - that's all.
Pigs? Please, we all know why people have pigs, right?
I do not believe, that this exp pack will be more interesting than mermaids, who even can't diving.
Yes, they will build pretty exp pack, but again there will be lots of disappointed, bored people, because it will be another repetitive clicker with lots of "rabbit holes", easy interactions and lazy solutions.
And please forgive me, but the Sims (as characters) will be still the same - some traits, two or three special interactions for a trait, no proper connections between families or even inside family (my Sim died in the jungle and his family - at home in Vampire village - do not have a simple moodlet because of his death).
I'm very happy when the people are happy to, and if you want a farm - go ahead. But please look on the direction of this game and consider - do we need more - right now - attraction system, better whims system (yes, the whims are dying, I know), maybe education pack for OUR SIMS, to make them more interesting, more personalized, more playable? Then this game instantly becomes funnier, just better, even without special careers like farmer.
Sorry, guys. :(
Regards!