I was just thinking about freezing the top tier of the wedding cake for the 1st anniversary but then I was like "what about the fondant, you cant freeze that"!! So tell me, can you freeze it for a year and it be ok?????
If I were you I would remove the fondant before freezing it, but thats just me. When you thaw it next year, the fondant will get tons of condensation all over it and you will probably end up peeling it off before eating anyways. We froze our buttercream cake with chocolate shells on it and it tasted delicious a year after.