I think that the NKJV is basically an NIV which has been stylistically rendered in a manner simlarly to the KJV, but is not a KJV.
In other words, in one of the most often mis-used passages of Scripture -- Romans 13, which has been abused to suggest that Christians should submit to a near-total subordination to Government -- the NKJV suffers from the exact same problem as the other Modern Translations... it suggests no "check" whatsoever on the Power of Government.
The Old King James, archaic though its wording may often be in many places, is the more accurate translation of the Romans 13 Greek, "higher powers", and thereby implies a check on the power of Government (the State's subordination to God) -- an important theological distinction which the Modern Translations (including the NKJV) do not preserve.
That's a good example. Thanks!
There were many King James Versions, so isn't it hard to know WHICH of them is the most accurate, if you don't just assume that "rev xxx" the latest is the best? Earlier versions for example included the apochrapha, which is now totally missing. That's dropping entire books, just to please the British and American Bible Societies, but some of those books were in the Bible Jesus used, if I'm not mistaken.