Hopefully it will result in a better outcome. They did something similar with a massive delay to the D70 Dac (I'm surprised it didn't perform better, but nonetheless, a great DAC, though the price is a bit ehh at the original MSRP).
This thing it looks like they're having more trouble than first anticipated, getting double troubled by the dreaded ESS hump (of which some DAC makers have been able to smooth over heavily to basically make it look as if it doesn't exist). But perhaps they're having luck compelling ESS to bring out some revision with silicon-level remedies (seeing as Topping said if I recall correctly, the ESS Hump is a hardware flaw with no software mitigation).
The second thing that seems to be delaying this thing is the DX3 Pro's sensitive opamp perhaps that have led to more than a non-trivial amount of failures of the entire device (as one user reported being offered a fix where the replacement resistor will raise the output impedance to a horrendous ~15ohms).
Regardless of the issues, it looks like they're taking the problems seriously to have delays of this length.
I just hope they go easy on the price premium (as they're seemingly trying to move up the pricing pecking order quite fast as we've seen with the D70). Nonetheless, I've wanted this device when it was first revealed. Though it's going to take quite a bit to get this RME DAC off my hands >_>