I think it's cool Warwick Davis is reprising his role, he helped officially open the Harry Potter portal at Epic with the Phelps twins didn't he. So he obviously still loves the franchise, and he's a HP legend, played multiple characters in the films. Flitwick, Griphook, and someone else? I just looked it up he also played a bank teller and choir master! So 4 characters! Flitwick is in a lot of makeup anyway so I'm sure he'll be made to look different to the film version and not the same. Everyone else is going to look quite different. Saw pictures of the Weasley family filming in London the other day, they all look so good and their costumes are so 90's in the best way! Ginny and Ron are adorable and the twins look spot on.