It's not really a new trend at all, Kickstarter has been around for some time now and funded many many projects. So did similar Crowdfunding sites. Many Indie Game Developers have tried crowd-funding already and often failed. However, what Tim Schafer did there is extremely revolutionary in so many ways:
1. They raised a staggering amount of money there, which doesn't happen every day.
2. They managed to do it for a video game, which generally have a much harder time on these kind of sites compared to film projects and "conventional" artists (this is also why you haven't heard of crowd-funded games before this)
3. Not only did they do it for a video game, but for an Adventure no less. The oh-so-dead Adventure which we all knew wasn't really dead, but now others can see it too.
Bottom line:
As a Adventure Gamer this is great news to me. I grew up with Monkey Island and Lucas Arts Games in general, and I'm really happy to see them return to a conventional adventure. Actually that's saying it too polite, my reaction to the news was more like "O #$%^ YEA!" but you get it

It's also great to see how much energy really is left in the genre and the fans around it.
As a Indie Developer however I'm not sure yet what I should think about it all. We will just have to see how it will turn out. There is some definite curiosity by some industry people now to try it out themselves (like
these guys), but of course that doesn't mean they will actually do it. If they'd do, it could be really bad on Indies trying to fund Games because they have to convince potential funders even harder than now to compete with the promises of the "big-shots" by showing more already-produced game (possibly with a bunch of accolades they already received, too).
But it also could go the other way entirely and bring a ton of new more open-minded potential funders to the table than there were before, resulting in something of a golden age for crowd-funded video games for big and small developers alike.
Who knows? Only time will tell for sure
