Toyota Nextel Cup plans on hold?

In this week's Automotive News, Mark Rechtin quoted from an interview with Jim Aust, president of Toyota Racing Development, that Toyota has put its plans on hold for NEXTEL Cup because NASCAR is considering announcing major changes to its chassis and engine specifications either after this year or after the 2005 season. Toyota had originally planned on being at Daytona in February, 2007, but those plans seem uncertain now.