Yeah, this is pretty lame that we haven't heard anything yet, and it's beginning to seem like Silva was probably slapped for posting this (seeing as it disappeared afterward).
This line-up looks awesome and there seems to be a lot of excitement for it (on these boards anyway), so it would be pretty disappointing if we never head of it again. Of course, those sketches seem to be like preliminary character (in this case team) designs, so it's possible it'll be a few more months before we hear anything else. It's also possible they could have also been part of a pitch that didn't get picked up, or that won't mature (in the Monopoly usage) for a while.
Does anyone know when Silva would even have time to do something new, either a new title or switch to an existing one?