CityVille: Shamrock crops on their way out, new crops coming soon

CityVillers take note -- the Shamrock crop in the game will be 'leaving soon,' according to this CityVille Twitter update, so if you want to grow the green stuff, you'd better get moving (I've personally never planted this because it costs 3 City Cash to do the deed -- boo). However, it looks like there might be some new crops coming soon, though there's no word yet on what they will be and if they will -- like the Shamrock -- require you to give up a little City Cash for the privilege of planting it.