No idea what he'll be appointed to. But AAR's are the goal-line guys. They are all L1 FIFA referees and qualified and eligible to referee.
As far as I can recall, these are our FIFA guys;
Webb, Clattenburg, Atkinson, Dean, Mariner, Oliver, Probert, Taylor. Don't think I've missed anyone (Foy, Halsey, Jones, Dowd, Moss, Swarbrick all 45+ and Friend & Mason too old to be appointed as older than 37).
Mike Dean next to drop off FIFA as he's 45 soon, so automatically demoted.
No-one older than 37 can become FIFA and no-one older than 45 can be retained.
Hope no-one's confused!