I don´t read anyone is putting a Tiger tank back into production, far from it. What I read is someone offering their capabilities - "We are a drawing office" - who has an idea - "we intend to design and to manufacturing" - for which they are looking for a launching customer - "For our new project we search customers". Many technical problems will have to be solved, but the first one is a marketing question: would there be a market for such a product (which needs to be fully developed)?
My guess is that people with the drive and money to own a Tiger tank, either go the route of adapting an existing tank chassis into a Tiger look-alike, or have enough money to acquire and restore a real Tiger tank.
Just my 2 Euro cents. . .
Hanno