RB5009 and AES-GCM hardware acceleration

In my quest to ever improve the performance of a few ipsec tunnels that I run, I was wondering if anyone has heard if there is any expectation that acceleration for AES-GCM will be forthcoming to the RB5009 series? I noticed it was just added for the Hap ax2 and is available in CCR2004 and RB4011 models. Any hope?