It's nothing new to the designers, but it means that the new Tiger could be forced to become a completely different car. It was criticised at the time for having very little space and anti-social seating despite its dimensions, and sales were very modest. It is a glorious machine, but of its time, and best left as a unique masterpiece. A good modern replica (Evans perhaps?) would probably be quite expensive, but still find buyers in a small specialised market, but not really any hope of it being successfully mass produced
I think Insight's idea of a modern 7 would also give a lot of Tiger-style driving appeal although it would not look anything like a TG. It would not be a practical, weather-proof every day car, but a good fun car. The Suzuki Cappuccino was not that far from this idea, but was a genuine prospect for any day/any weather driving.