Any idea what type of plane will be working TOM4200 LGW-HER on 25th July 2017? My guess is a B738, but wondered if I'd get lucky and get a B788? It didn't specify Dreamliner when we booked it, and when I took that flight in 2012, it was a B738. (I have known of Dreamliners operating it) but you never know
I would say you're probably right. Thomson have specified Dreamliner on some of their shorthaul flights for next year, but as always, aircraft type are subject to change so you'll just have to keep your fingers crossed.