It is unlikely that any campaign will have more than 40 levels even Normandy, and Tiger II P is not in Normandy, and will very likely not be there due a multitude of factors. Just because something was there, doesn’t mean it will show up in game, otherwise we would have strategic bombers in Tunisia and Normandy.
had said the developers that it will have over 40 campaign levels
That’s an old screenshot from the Q and A from over a year ago. Everyone works off the assumption that 40 levels will be the end because everything the devs have done gives that message.
In addition, the final version will be released as soon as the game is no longer in beta, so we’ll see.