[and it’s pretty clear that it’s General Relativity that has to be wrong.]
...............
Does this mean that its more or less likely that science fiction things like worm holes and warp drives are possible.
Warp drives aren’t going to happen, IMHO. I gave reasons why elsewhere on this thread. Wormholes might be more/less likely in a Quantum Theory of Gravity, but I would guess most astrophysicists/cosmologists expect the likelihood to be the same either way.