MyTravel are not flying from Leeds anymore so you would be flying from Manchester. They are operting some 'W' flights including LBA and Humberside and thats about it.
Have you flown for MYT before ??
Sorry, i didn\'t read all your post.
You will be flying from Manchester or East Midlands on a seasonal contract.
Money is good as far as Cabin Crew go.
You will be on an A320. 180 pax max and 4/5 crew, short haul.
The chances of employment after the season are virtually nil. The only thing they may do is offer you a chance to come back next summer.
You will have a good time though and its worth the experience.
Good Luck.