There will no doubt be further work done on that range but Antarctica seems to be positioned at the Souf' Pole ~ PERIOD! The nicer spots show up when other continents link to it's larger masses, but that's always in the lower latitudes.
Adding confusion to the matter there's the recent discovery (or more likely 'demonstration') that Antarctic ice sheets melt from the bottom, not the top!
I’m really curious to find out what might be in some of those great large lakes they’ve found... Down under a few miles of ice. A liquid water lake, isolated for hundreds of millions of years... What sorts of critters might be in there? The possibilities are awesome.