It's a stock pump. They're not building shit. 1) They've been fucking with hypersonic drones since 2003. 2) When you don't even have powerplant info, you're lying to people too credulous to tell the difference. 3) The last test they did on an SCRamjet blew up after 9 minutes, after an MX Missile got it up to speed. 4) There are no buyers for this craft. It does not have a mission in line with anything the United States is interested in doing any time soon. Anything they might want from it is already available from the X-37. 5) The actual press release says "could be operational by 2030." Really. You're forecasting a 17-year development cycle on a program you're already giving a designation? By way of comparison, the first development contracts for the JSF came down in 1996. First flight was 4 years later. Production F-35s rolled off the line in 2006. This for a plane that's sort of an ungainly blend of the F-117 and the Harrier. An extra 7 years is going to take you from "hypersonic shrapnel" to "front line operational drone?" It's a circlejerk, pure and simple. Lockheed leaked one of their concepts to AvWeak which went insane and they had to bring the whole thing back down to earth. Now - Pay no attention to that F-35 decidedly not meeting spec over there, even though program costs are projected past $400 billion...
It's not even that. They're saying "We're Lockheed, we have the Skunk Works, look how innovative we are" in order to make the stock market go "ooh, Lockheed is doing something cool." Nobody has bought this plane. Nobody has commissioned this plane. Nobody has even asked for this plane. This is Lockheed going "if somebody wanted, we could build this plane" in order to make everybody think Lockheed is dope. And, when they have to be, they are. But right now, "Lockheed" is "the pigfuck called Lightning II."