indie dev, have been to GDC in the past, but can't afford to be there this year even though I am local.
You shouldn't have to wait for the big news sites to write & post articles -- all kinds of people go to GDC & there is no way there won't be someone who livetweets this! However it is a developers' conference, and it is likely there won't be any big new details about the game announced there that were unknown previously... (although it's possible that means we might be hearing more real news before then)
Kind of skeptical actually from that writeup that the game itself will in fact be shown very much.