M.F.
Hi E., We did this last year with our son before the twins were born, we moved AND he went from crib to toddler bed. Things that worked great for us, before the actual move, be sure to give hime time in the new room, make a big deal out of it, put some of his things in there so he can gradually get used to it.
The transition to the big boy bed went so well, we were shocked. We took him with us and he picked out a new bed, new sheets, new pillow and got to pick one "special" blankie to put on this new bed as well. We came home that night and set his new bed up right next to his crib. He didn't even think twice, at bedtime, he went right to the bed and hasn't looked back since.
Good Luck and congratulations on #2! M.