I think it would be nice to have more seasonal activities (skiing, Going to the beach (why can't the sims swim in the sea anymore ?), Hiking, Scuba diving, decorating the christmas tree, Have our sims go shopping for (real, believable) christmas presents (cause the ones in the sims 3 were lame), decorating the house for halloween....
Seasonal crops would be nice too (pumpkin, clementines....)
And I hope there will be all the activities there were in Sims 3, I really liked them particularly the snow activities.
