Is DC UNIVERSE going to add these issues?
I hope so.
Note that not all comics have been digitized. I have no idea if these particular ones have or haven’t, but just something to keep in mind when you encounter missing issues.
Not on comixology either, so likely has never been digitized. DC did do a full run of trades based on these issues a few years back, so digitizing on these issues would probably be easier than books from the 1940’s that are missing. However it looks like nobody with the DCU service has any idea, nor control over what is prioritized for digitalization.
I hope they get around to them, also.