You can already do that with the MKI as well. Problem is with the MKI the non I2S inputs are inferior to the I2S, and USB even more so than S/PDIF because it is synchronous.
The MKII implements the lens technology on all inputs and upgrads USB to asynchronous. So on the MKII the non I2S and I2S inputs are much closer. I personally moved from the bridge to AES/EBU a week ago (for different reasons) and the difference is very very small. You can read up on the PS audio site forum about impressions on USB versus I2S.
Getting the MKII upgrade and going USB into the PWD will be your best bang for the buck upgrade. You can insert an offramp 5 into the chain in the future if this turns out to be a material upgrade over USB direct and you're willing to spend the extra $$$.
The MKII implements the lens technology on all inputs and upgrads USB to asynchronous. So on the MKII the non I2S and I2S inputs are much closer. I personally moved from the bridge to AES/EBU a week ago (for different reasons) and the difference is very very small. You can read up on the PS audio site forum about impressions on USB versus I2S.
Getting the MKII upgrade and going USB into the PWD will be your best bang for the buck upgrade. You can insert an offramp 5 into the chain in the future if this turns out to be a material upgrade over USB direct and you're willing to spend the extra $$$.