And what is more; I have encountered numerous colleagues whom arrived in Dubai in good faith, with a Boeing course date, only to be told (once they have formally resigned from their previous company i.e. - trapped), that: -
"Sir/Madam, there has been a change and you will now be on the Airbus (classic) fleet; but don't worry - you will surely upgrade or transfer to the A380 in less than a year."
The point being, at the moment they will tell you exactly what you want to hear as they are getting desperate to recruit!
Be wary!