i think that flowers in general will be a popular addition and i anticipate different ones being added from time to time, for different occasions and for the spring for sure.
I am sure it was considered, but for fairness of a global game, it would be a lot to take on ALL the flags there are. We wouldnt want to leave anyone out... even if we DO want our flags, we want to be fair too.
mission accomplished.... but i anticipate that back to school will return with more school supplies one day. There are so many differnt school related things, i am sure it was impossible to fit them into one release.