No, the Wii U doesn't have a system-seller, yet. When it gets released Project X looks to be my must-have title, and who knows when Zelda Wii U is going to be coming out.
That said, I'm not sure the Wii U needs system-selling titles to sell well.
The Wii U will probably start to sell well now purely because it is the cheap console. It's at $350, has no online subscription, and has had a year to collect titles. The nearest competitor price-wise is the PS4, which is $50 more expensive and has a $50/ year online subscription, and doesn't exactly have a system-selling library, yet, either.
Moving up the ladder, you have the One, a whopping $150 more and $50/ year subscription, again launching without a system seller. The icing on the cake is that One's multitasking--putting two movies on one TV screen--makes the Wii U's gamepad look brilliant and inexpensive at the same time.
While the comparison of the HD consoles was between the infant Wii U and the mature PS3/360, the comparison inevitably made the Wii U look expensive and weak. The situation flips when competition comes to market.







