Nothing new in Oz.
Perth Centre was closed and Area ATC operations moved to Melbourne in the 1990s.
Also in Europe, last time I looked, France also had plans to reduce its number of ACC's. One of the ideas involved closing Reims ACC and combining its operations with Brest. Unsurprisingly this was being met with very stiff resistance from the French Unions, and, given this is France, seemed unlikely to actually happen.
DFS in Germany were looking at something similar and....
Well, the UK has two ACC's. Scottish (in Prestwick) and London (at Swanwick). Is there really a need for two?
BEX