Forum:KB:Yuuzhan Vong in Outbound flight

In Timothy Zahn's Outbound Flight, Thrawn is told that Darth Sidious had a vision of a race from beyond known space that would lead to the destruction of the Republic. This was the excuse given to Thrawn in hopes he would destroy Outbound Flight. -So was this a reference to the Yuuzhan Vong, or something just unrelated?