No they never intended to introduce it. They says something crazy like that every now and then to get in the news and to remind people they are cheap. They've had:
* Pay for the toilet
* Standing 'seats'
* Allow customers to watch porn
Probably others I've forgotten. They've even admitted they are marketing stunts.
Which you can already do. This is exactly what business class is, right now! For example, the top deck of a BA 747 is entirely lay-flat business seats, which are incredibly comfortable for long haul. But, as you say, you have to pay (somewhat) extra, or live in hope that the computer gods decide to upgrade you...
* Pay for the toilet
* Standing 'seats'
* Allow customers to watch porn
Probably others I've forgotten. They've even admitted they are marketing stunts.