If BA offered me direct entry on the 380, 3 flights a month, 3 year seniority, year round sunshine, a paid for house or flat with bills covered, transport to and from work, their old final salary pension scheme and up to 50% off hundreds of food and bevvy outlets in and around London, then I would consider it.
Instead I would get European short-haul for around 4 years and fleet frozen with it on the 319 or 737, working every weekend for your first 5 years (an important point when in your own country and quite frankly I'm too old to go through that crap) in a cold, grey and miserable climate riddled with recessionary cutbacks and rising costs everywhere you turn. How much longer can British Gas keep hiking up prices 10% every year?
With 32 EK flights per day in and out of the UK, if you ever feel like getting wet and depressed then its fairly straight forward to get back to the UK.
Nice to see old friends from time to time though!