Acoustic Energy Aego T from 5.1 to 7.1 - What speakers to buy??

Hi All,

I have recently bought a Denon AVR-3312 and i want to upgrade to 7.1

The speaker package i have is the Acoustic Energy Aego T 5.1
As the Aego T speakers are discontinued, can anyone recommend 2 speakers to go with the Aego T setup, they would be used as back surrounds.

Thanks,