I actually have the same mindset that you have about not believing deconfirmations unless we know for sure who it is. And so far, the only names going around in insider circles that I know of are the ones in that SE list, Minecraft, and two Namco names. Of course, I know some people like to twist my words so I'm not going to specifically give out names I (and others) aren't quite sure of yet, such as the Namco ones. Even with the SE list, I'm not quite sure which name it is. The fact of the matter is that everybody is hearing a variety of different names, some heard more than others such as Erdrick.
In regards to Minecraft, I personally haven't heard it much. Some other insiders or leakers have not heard it at all or heard it very little. I think it's possible, since Verge has great credibility for this game in particular, but I'm not sure enough to make a call on it myself. I think Banjo has a fair shot. Hope nobody twists my words on this one, lol...