Good god, is it 2010??
We're already in the middle of the 2020s now, and the next generation/6th generation fighters are going to emerge in prototype form in the second half of this decade for service in the 2030s.
The technology base -- propulsion, structure, airframe design -- for a frontline combat aircraft intended to enter service around 2030s, to operate in the true hypersonic regime, just doesn't exist that we know of.
Talking wildly about the idea of hypersonic fighter aircraft fifteen years ago, for fighter aircraft expected in the 2030s, was okay.
But we're less than 10 years away from that time period now, and if hypersonic performance is expected, then we would see a much more mature technology base for it by now. Unless the major aerospace powers are all secretly pursuing hypersonic performance and hiding technology and industry advancements relating to it, or unless there is new gamechanging news which emerges, I think we can pretty much dismiss the idea of genuine hypersonic performance as an expectation for the next generation of fighter aircraft expected for the 2030s.