Debatedly, we need some sort of Neo-Apollo (literal) moonshot project, in the face of a Great Competitor (these days, China?) also striving to get a manned Lunar-orbiter station/whatever.
Also a personality such as JFK to do the "we do these things..." speech to motivate us (not gonna be Trump; he's given that sort of speech on space stuff and all those many other things and a majority of people are "I'll believe it when I see it" at best) to fire up the nation.
Ok, so that's maybe how we'd repeat history (and by being so obviously a repeat, it might blunt the edge it might have had if completely new, but probably no more than modern cynicism and Armchair Expertise over social media would poison such an effort) and the futurologist might suggest something else like a crowd-funded investment into more corporate vanguards, perhaps linked to the Asgardia community or something along the same lines. But even that's probably not Futurologistic enough and still too much anchored upon the building blocks we can plainly see already existing, that are likely to be superceded by some other paradigm shifts in the relevent fields.
When I attended Space School, more than three decades ago, I remember many of the ideas that were being floated around (in the early age of the Shuttle) such as the possibility of developing solar-sailing missions to other planets (it was more than a decade before the Cubesat idea was formalised, but we were talking of (with the vague idea that we might actually do it, perhaps with Beagle-like funding/sponsorship) putting something up there that fit into the 'ballast' space of a regular launch's satellite shroud/fairing or a spare corner of the Shuttle/Buran/HOTOL cabin- or hold-space. That never happened. Neither did we (humanity) get back on the Moon by 2019, an arbitrary but humanly-meaningful 50 years after the first footfall, that I genuinely thought might be a driving schedule to work to in the 2010s (if only it weren't for the global crash at the end of the '00s?).
So I have a track record for not being very good at futurology, is what I'm saying, plus many other people who have played this game seriously or otherwise. Perhaps you could find
that a
useful thing in what I predict, but probably even this would not be a profitable pursuit.