I think it will be for the very wealthy.
Of course it will be for the very wealthy. The advantage of this aircraft, if it ever comes to be, is that it will have much more range than the Concorde did, so it will be able to cover many of the Asia-to-Europe, Australia-to-California, and other long distance flights that the Concorde couldn't cover due to range limitations.
The second advantage this aircraft has over the Concorde is that it carries fewer passengers, so it more closely matches the demand for such high-priced yet time saving seats. The Concorde, ironically, was too big to capture the luxury market (not enough demand to fill the seats,) and too small to capture the tourist market economically (not enough cheap seats to sell in bulk.)