They sent tweets about it along with the blog I think.
Just looking around on Gamespot, see this article titled: "Who would win if Bioware changes the ending?"
They started to "support" the current ending saying that it is art and it can not be changed. That was their first article I believe. Now they are hinting towards the outcome of an actual change in ending. "George Lucas fucked up prequels, should he do them over?" (Well, he really should but that's another story.)
One of the comments on the latest article got my attention. Like many gamers, the guy says that this is not an actual art form as the interaction between the consumer and the developer turn it in to a business instead. So, as many idiots threaten with their sugar coated words like "fucking bioware I'm quitting!" not changing the ending means future loss of profits due to enraged consumers leaving the firm behind. However small and insignificant this loss may be, changing the ending promises a much better outcome.
Quoting him: Players win because they get to see their game improved and get what they want. Developers win because they show that they care, that they are listening to feedback unlike many others, and they show that they can be trusted.
Whoa, look guys, common sense! Quick, hide under a rock! My hat is off to this guy as he voices the same opinion I've been thinking since this all started. Games are not art in the traditional sense, they are interactive. Besides, the advertisement made about ME 3 and the end product we got were completely different in terms of ending. So, by fixing it, Bioware gains more customers compared to losing them by not doing anything about it. If the DLC is free of charge, then damn, it may be one of most effective ways of promoting the firm and the product to date. The debate about the ending got a few of my friends started on ME 1 already.