One bit of perspective from someone in the stock market (disclaimer, I do not deal in stocks for video game companies, but it should all be very similar). They will in fact lose money if they release a new ending. When people invest in a particular stock, they mainly look at 2 things, quarterly profits, and what the buzz about the company is. Right now their quarterlies are looking good as they release ME3 right before the end of Q1 getting great sales numbers for that quarter which looks good to investors (and IMO might be why the ending sucks so much.... they were just too close to the quarters end), and if you look at what you see when you don't look on forums, but rather at what an average investor would look at, you mostly don't see our cause being championed that much. Seriously take a look at google, alot of their money comes not only from sales, but also investors, and to an average investor it does in fact look like a vocal minority if they see it at all. This should change! Right now I'm assuming EA/Bioware is sitting in their lovely bunker, and they are thinking about it, but how they are thinking about it is probably in these terms.
1. If they release a statement saying our bad, we messed up then the news outlets will pick up on it immediately, and it makes EA/Bioware not look as good of an investment, and while the fans are happy, the investors (now that they know the company screwed up) will lose confidence. However, by doing this a new ending is made, and future sales will not go down.
2. Bunker down, ride the storm, and deal with the significantly reduced sales from fan dissatisfaction, which leads to less funding for bioware, and possibly a reduced role for them in EAs roster, however their stock price remains consistent.
Right now they are analyzing which will cost them more money. The thing is they are going to lose money anyway, and they should (they delivered a bad product, that did not meet expectations that the creators themselves created), however we can pick which way they lose it. We love bioware, and know they can make good games, that's why we'd all prefer it if choice #1 happened (also because I want my house with tali). We can have #1, all we need to do is take the choice away from EA/Bioware, spread the message to the media as much as possible, and when the investors start panicking they will move heaven and earth to not lose their second source of money (aka DLC sales from customers). We have a newsworthy story here, but it's all about the phrasing. We can't just say hey, this video game gave me an ending that I didn't like, and we want it fixed, as average joe doesn't care about whether or not you like mass effect 3s ending or not. And since average joe doesn't care, news outlets won't report it. We need to get our own PR machine working (figuratively of course), and display the story differently. Instead of being gamers angry at a failed ending, display it as a group of consumers concerned with accountability of corporations for their products, as that is something average joe can watch/read/ect. Play up the childs play event (which was absolutely genius by the way), and make this a story relateable to even for non gamers, and a cautionary tale to every corporation out there. Make a splash! holding the line on the forums is a valuable service, and is something that needs to be done, but to truly stick it to em, we need to do things outside as well (like the childs play thing), and really get the media's attention, because the more stories produced, the more investors are going to see the problems, and the more likely EA/Bioware is to think that option #1 is more attractive. Thank you for your time, hold the line, we won't let marauder shields sacrifice be in vain!