Comment by uniqueuid

The question is, of course, for which mission profile you even need a manned and/or large plane like this.

Will this be autonomous? Will it be superseded by loitering munitions, drones and super fast rockets?

Another nitpick: > similar size and range as the SR-71 and will likely engage in the same missions.

The SR-71 was an espionage plane, not an armed one as far as I know.