Future of ISS

On Friday, May 8, 2020 at 12:03:58 AM UTC-4, JF Mezei wrote:
The USA announced it wouldn't renew its commitment to ISS beyond 2024
(or is it 2025?).

With the USA having lost interest in international cooperation, I am
curious on how difficult, purely at the technical level, it would be for
europe/japan/canada to take over command and control of the "US segment"?

Would the source code for C&C systems on Destiny be available to
partners to change (for instance point antennas to ground stations
instead of TDRS , change protocols etc)

With ground stations in Canada, south america, south africa and some
island in the south pacific, could this provide sufficient coverage to
replace most of the TDRS functionality? (in addition to the ones in Russia).

With oil price way down, will Russia fall down to its late 1990s budget
problems and also wish to abandon the station?

Just curious to see if continuing operations on ISS is possible/likely
after the US pulls out.

Would SpaceX end up charging less than Russia for ferry flights to/from
ISS ? or is Russia still considered much cheaper than Dragon2 despite
Dragon2 being re-usable?

I don't believe the US has lost interest in international cooperation in space. It is just that there is a reorientation away from low Earth orbit to the moon and beyond. The US is still cooperating with Canada, Japan, the EU and others.

As far as the ISS, I'd suppose there is a question of how much longer is it viable vs the cost to keep it so.