Dont forget WOZ has sold close to over 1500 units. More importantly, Its not a lame title to over 1500 people who have laid down money on it.
If it wasnt for Wizard of OZ, JJP may not be looking at a second title. That 1500 WOZ sales cemented JJP's future. and 1500 units so far, before its even released. If it gets alot of positivity after its released, which i reckon it will, I reckon they might sell more than 2000 or even 2500, who knows.
Good times ahead with a great mix of different themes, more the merrier.