Never saying no to anything but I can't see it flying mach1+ over populated land, I would have guessed that it is pretty impossible to get rid of the Sonic boom.
Where maybe they are looking is at developing the technology to enable it to fly at M1.8 as economically as at M0.98. This is Concordes current main failing as it is very unefficient at low speed.
But with new aerodynamic technology and modern engines who knows what could be done in a few years time