Probably the same as the fare classes now - so Flex Plus is going to be Y,E,R fare buckets, Flex is going to be U,B,M,W,G and Special will be a new P class - so, I think the current Business class saver O fare is going to be the price of the new P class Business Special with O class moving up in price, and the economy fares will stay where they are - pricing is more of a market based determination which takes into account what the competition is doing on the popular routes that EK pax buy on, rather than determining it from the fare bucket, which leads me to believe that the actual headline prices won't really change for each fare class, just mileage earning.

We will soon know!