Waiting with baited breath
It's past midnight in London right now, so I wouldn't be expecting a post tonight unless he's a night owl. I think a more realistic time is in 12 hours or so.
Have some pity guys, flying eastwards is no fun, I think an update in 8-10 hours or so is reasonable.
This I used to fly LA to NYC on the 11 pm west coast time. get to NYC in 6 hours and it would be 8 AM. Even if I slept the whole trip I would still be tired the next day.