The answer is now out and BA are not offering a business only airline. 3 classes inclduing economy
"The business class cabin will have 24 seats that convert into 6’ flat beds. And when we say flat, we mean completely horizontal. This makes OpenSkies one of the only airlines in the market offering this feature. We will also offer 28 premium economy seats with a 52” seat pitch. This is also unique, redefining the premium economy class. Plus the comfortable 30 economy seats mean no more than 82 passengers will be on any given aircraft. It’s all part of our vision for a more personal flying experience."
almost as exclusive in the back as up front. Must be losts of empty space with that config?