People aren't that fussed about the scale - after all we already have Bumblebee, Mirage, Starscream and Grimlock in the same size scale (Deluxe); what's more important is the overall visual asthetic of the toy... the robot mode, vehicle mode and colour scheme needs to be reminiscent of the original G1 character. It doesn't need to be the same - but it needs to be a clear intentional tribute. Look at Classics Jetfire, it looks drastically different from its previous toy incarnation but marries the G1 toy and show(Skyfire)/comic likenesses and is clearly an intentional tribute to the character.