According to New Scientist, the Atlantic Meridional Overturning Circulation (AMOC) could be rescued after collapse by cooling global temperatures. This suggests that the circulation's tipping point may not be irreversible, even if the system has already been severely weakened by climate change.
However, the rescue would require removing huge quantities of carbon dioxide from the atmosphere to drive that cooling. The article notes that we do not currently have the technology to remove CO2 at the scale needed, making the theoretical recovery difficult to achieve in practice.
The key distinction is that AMOC collapse is not necessarily a permanent end point, but avoiding it still depends on actions we are not yet equipped to take. With only one source reviewed, there are no differing findings to compare.