Germany will stay neutral at first, but I'm pretty sure he'll get dragged into war... if he does, there's no way he's fighting alongside Russia.
South Italy... meh. I don't know. Depends on who can convince her the best. XD

The First Arc, guys, will be called the Island!Arc. This is when all of the characters somehow get poofed to a remote island, but not in groups- they will be paired randomly and they have to find a way to survive.