tl;dr It's not an actual design.

"While not intended to represent an actual aircraft, Airbus’ “Bird of Prey” is based on realistic ideas – providing an insight into what a future regional aircraft could look like."

“Our ‘Bird of Prey’ is designed to be an inspiration to young people and create a ‘wow’ factor that will help them consider an exciting career in the crucially-important aerospace sector,” explained Martin Aston, a senior manager at Airbus.