To the following destinations, British Airways is offering an additional bonus of 7,000 Avios in First Class, 5,000 Avios in Club World Business Class (J,C&C Class) 2,500 for World Traveller Plus (Premium, W&E Class), 1,000 World Traveller (Y&B) , Club Europe (JCD) 500 for domestic Y&B

If booking business class then this is a good deal.

If booking economy class, the bonus is only available in Y and B class which are the most expensive fares. Here are some example fares for those two classes, B and Y respectively:

Istanbul price range: £793 to £954
Moscow, £703 to £1,131
Bangkok £1,173 to £1,853

The bonus is payable on these services with outbound travel to 28 November and return by 12 December

LONDON HEATHROW to:

Aberdeen
Baku
Bangkok
Buenos Aires
Cape Town
Edinburgh
Geneva
Hong Kong,
Houston
Istanbul
Luanda
Moscow
Nice
Rome
Sao Palo
Stockholm
Tel Aviv

LONDON CITY AIRPORT to:

Dublin, Dusseldorf, Edinburgh, Glasgow, Rotterdam, Bari, Bordeaux, Edinburgh, Jersey

My opinion? A nice gesture for making a booking but not worth paying a higher fare simply to achieve the bonus