I really don't think there was any doubt that this game will make Rockstar a s#!t-ton of money.
Last year, before RDD shipped, many people claimed, that it will fail. The only thing Rockstar fails at with new IPs is delivering more than one every half decade. Sure this game is made by Team Bondi, but consider this for a second: They market this game under Rockstar's name, so you can be sure that they were really taking care of the IP. Like, for example, BMW. It is a German car manufacturer, sure, but a couple of models are build in the US. And only there. So like Rockstar, BMW has to make sure, that all product shipped under their name, reach the same quality standard.
As mentioned before, consider Heavy Rain. Now this was a huge leap of faith for the publisher. But both the mature script, characters, and presentation appealed to a broad audience and the new gameplay made many curious. The same things can be said of LA Noire. Sure many fans of other Rockstar games will moan and whine about the missing free roaming elements. But that is like Edgar Wright fans complaining about the lack of zombies in Scott Pilgrim.
So no, I don't think LA Noire will fail.