Top 500 ( or any pilot in BA who requested a 'severance' quote by 5th May) should receive their letter between 15th and 20th May, and anyone wanting to accept the offer, has until May 31st to accept. I'm waiting for mine with interest. It is then up to BA how many of those are given it!
Don't believe everything that's written in the Media; but this doesn't seem too far off the truth, I hope !