Glad you are looking forward to it
The SimGurus have let out a couple more tidbits.
First, you don't have to own the Bohemian Garden set to unlock the new recipes that will come with this Bakery Set. That said, if you do own the Bohemian Gardens, it will unlock even more recipes to use.
Second, the bakery set works best if it is a lot you directly control. You can certainly set it on other public lots, but the baked goods will sell out in a day or two, and won't replenish themselves. It will work fine under personal control; NPC one, it will run out.