Harmonix teasing Monday announcement

"It's not a new Rock Band or a new Dance Central," company says.

Harmonix is teasing a new game announcement for Monday, May 5.

“Looks like we might have an announcement to make on Monday at @Harmonix,” Harmonx director of marketing John Drake said on Twitter. “Been in the works for a while – psyched to share it with you guys.”

He added, “And no it’s not a new @RockBand or a new @Dance_Central, before you ask.”

Harmonx is currently developing Fantasia: Music Evolved for Xbox One and Xbox 360, and Chroma for PC.