It doesn't seem to be widely publicised, and apologies if this has already been mentioned up-thread, but BrewDog is also brewing a beer for First.

'BrewDog further explained it will also offer a small-batch exclusive beer from the BrewDog OverWorks team for those in First class on British Airways. The company added:
“We are proud to be creating a new generation of sour and wild beers with our OverWorks facility – and more proud that very soon travellers on British Airways will be able to enjoy these beers at 30,000 feet and above. AirCraft is a dry-hopped Brett-fermented IPA incorporates the rich fruity esters and flavours from Brettanomyces with the notorious tropical hops of the south pacific for a bold but balanced hop experience. For too long, taking a plane has meant a limited selection of beer on offer but we love the fact that British Airways have worked with us to make this a thing of the past. They share our belief that you should be able to enjoy amazing beer wherever you are going.” - Taken from This crowdfundinsider.com article

Also, to clarify on the BA Employee and BAEC discounts.

From one of the staffers on the BrewDog Equity Punk Forum:
'Just to update everyone on this, the following is launching for BA staff and BAEC card holders from next week (01st May)
British Airways Discount
Starting next week on May 1st, we will be offering a discount in all our bars globally for British Airways staff and Exec Club cardholders. There will be 2 different discounts as follows:

• BA staff: 10% on all food and drink at all times upon presentation of a staff card. NOT stackable with EFP or other discounts. No expiry date.
• Exec Club cardholders: 5% on food and drink at all times, upon presentation of a BAEC card. NOT stackable with EFP or other discounts. This discount will expire on August 31st.' - Link to post for those with access