Zack and Wiki needs to sell les than 200k really to flop. I mean its a budget title first of all and it doesn't take as much sales on Wii to turn a profit as the rest.
So I doubt it will flop in the aspect yall are putting it in.
The question is will it be a success. I would doubt it going on to have success to such as that of RE4: Wii edition but I do think it can manage to break that 200k bar.