Looking at the board, I noticed something on the red squares:
"Pearl Jam Place"
"Green Day Gardens"
"The Beatles Boulevard"
"Track Pack Terrace"
When you include the fun fact that the codename for the RBN was once "Rock Band: Nickleback" to scare away reporters from snooping on it, and that there was a Rock Band: Pearl Jam being made at one point, one of these things isn't like the others.
*Muse: Rock Band confirmed!!!!*