First, please don't type in all CAPS. It makes it hard to read and is considered shouting.
You can do a short year statement at any time. If you did an annual analysis in April 2011, you can run another in December or January 2012. You'll simply stop the year, cut statements for what has happened (old history and old projection) and give a new projection based on the next 12 months. Refer to ยง3500.17(i)(4).