The ice shelves are getting smaller, but as the ice sheets melt, isostatic rebound should raise the land mass of Antarctica up, increasing the land area of Antarctica.
The land area of Finland grows by ~7km^2 every year because of this.
Fun fact in parts of Finland the land rising from the sea is projected to be faster then the current sea level rise scenarios due to climate change (not the worst ones but the "middle of road" scenarios that play out when we actually do something)