I do not think that Trump will retain the present level of secrecy over the US Space Fleet. It has gone on for too long and has certainly hindered global science as well. After all we understood how to manipulate gravity as early as 1955. All these photos here represent a reasonable output of seventy five years of gravity control alone. Considering that the main war ship is pushed around in the atmosphere by jet engines, it seems unlikely unusual propulsion is operational yet. Yet eliminating the effect of mass is just as good.
It has also left a false sense of near parity with competitors. The Russians have recently announced high speed craft as if this is important yet the USA has craft operating at those speeds for years but still secret.
What has long become necessary is a global regime that provides global security and zero meddling by local interlopers who have plenty to attend to in terms of sustainable economics