I would already have various titles that could be interesting in the launch window.
among esclusive first/second party (pikmin 3, p100, new mario), thid party esclusive (rayman and zombiu) and third party multiplat (ac3, alien) I would be busy for the first months.
But the actual absolute silence about the following months is scarying, so I'd wait for:
1) price tag
2) unveil of new games (both for 2013, but I'd admit that also games for the launch window as Fifa, Cod, RE6 or DS3 could dissipate my fears pushing me for D1)