Spirit Tracks Train

I am wondering whether you will be able to change parts on your train like you could with your ship on phantom hourglass, if you think so what would you like your train to be like if it could be custom. Also, a minor thing, what do you think about blowing into the microphone to blow the fan and what do you think of the other new items.

Actually, i found another thread exactly the same as this one, sorry, LOCK THIS PLEASE