[Dxbase] new countries prefix assignments by ITU, ARRL, God?

[Jack]

So, with the contest coming up this weekend, I'm wondering if anyone "in the 
know" has come up with any "official" info about the prefixes that each of 
the four new countries will be using?

I'm not asking about the ability to put new prefix designations in DXbase. 
Rather, I'm wondering about the ability to recognize from a spotted 
callsign, what country that callsign represents.  For example PJ2 = xyz, PJ4 
= abc, PJx = ???  Or is the case for example that a PJ2 could be in any of 
several of the new ones?

I've not found any info on the topic and a google search for ITU assignments 
doesn't show any updates.  Are we left with no ability to know from a 
callsign, what country that is?

Thanks,
Jack