It would be nice to have option to install custom firmware on this device. dd-wrt and cgminer package.
DD-WRT is unlikely and IMO inferior to OpenWRT anyways. DD-WRT is mainly known for supporting broadcom based hardware which this device will not be based off of.
If they do I would agree on OpenWrt being most likely. It is what Avalon used on tp nano and RPI to control some miners.
Who knows maybe someone could use that as a base of with OpenWrt, and look to see what Avalon did to it to get mining nice and GUI. I still want to see initial screens of the R1. I don't see why that one review did not show some of it at least.