Sorry guys, it turned out to be a screen facing the concert stadium that played some Ranka and Sheryl songs with some minor special effects in the stands. On the bulletin board near the stairs I just saw the dates 4/1-4/6. I went back today and just saw on the screen commercials for Macross Frontier False Songstress Hybrid pack, Nyan Nyan commercial, Ranka interlude, Macross Ace Frontier, and Macross Frontier ad by Bandai visual.