Antarctic sea ice extent had been rising from 1979 (when satellite data started) to 2015. It regressed for a few years and then expanded again in 2020 and 2021 and then regressed again. There's a lot of causes of this and there are studies looking at it going back many hundreds and thousands of years, but they aren't as accurate as satellite data. Additionally, different seas in the antarctic have had different behaviors. Some have regressed and some have expanded at different times.
> ...changes in atmospheric circulation, wind stress and thermodynamic processes linked to the Southern Annular Mode (SAM) and El Niño–Southern Oscillation (ENSO)
>...Thus, projections of future Antarctic sea-ice extent and the associated climate implications are highly uncertain.
Steady rise then big rise and then a crash regressing to the mean. Point is - we don't know.
https://cp.copernicus.org/articles/18/1729/2022/
> ...changes in atmospheric circulation, wind stress and thermodynamic processes linked to the Southern Annular Mode (SAM) and El Niño–Southern Oscillation (ENSO)
>...Thus, projections of future Antarctic sea-ice extent and the associated climate implications are highly uncertain.
Steady rise then big rise and then a crash regressing to the mean. Point is - we don't know.