The problem here is that you look at the Elan hull and the first idea is that it is a planning boat. Well, it is not, at least like a Pogo is. For that the boat should not weight 8000kg but 5000/6000kg.
Regarding how goods and fast the boat will be, well, let's wait for some racing results or at least comparative testing. I am not impressed with what I saw till know (Yacht.de sail test).
This does not mean that the boat will not be a great performance cruiser just that it is not what it looks, I mean, almost a racing boat.