Any info about a possible upgrade to ARC Ref 3?

I was just wondering if anyone has heard any information or rumours about the possible upgrade or replacement of the ARC Ref 3 preamplifier.

I am looking to upgrade to the Ref 3; however, I know it has been the flagship for now 3 years...I think I might wait 3-4 months if no information surfaces from this thread.

I do appreciate your help.

Brian