Comic-Con 2008 took place this weekend in San Diego and of course Halo was their with a Halo universe panel. During the Halo Q&A session, one person asked if the Flood would make an appearance in the upcoming Halo Wars. Read the response after the break.
"That's a very good question. We haven't talked about any other races. All I can say is that it's a complete Halo game."
One would think that a "complete" Halo game would indeed contain The Flood, considering their importance in the Halo universe. I certainly hope to see the ugly creatures in the upcoming RTS. I'm looking forward to Halo Wars being a pretty epic entry in the Halo franchise and I couldn't help but feel cheated if something as integral as The Flood wasn't included somehow. If they're not a playable race, I can live with that; as long as they're there.
Source: Kotaku