As you may know, JetBlue had announced some time ago that they will be starting new transatlantic services from Boston and New York JFK, to London Heathrow.
This would be their first transatlantic routes and will only be serviced by their new a321lr. Their new a321lr were redesigned with a new livery and industry-leading cabin. Since these new routes are highly anticipated and also will only be flown in this aircraft, adding this livery to Infinite Flight would add more realism and definitely allow for more options within the JetBlue aircrafts.
Credits: Jet Blue