The real problem with the WTS interpretation of the "tree dream" is that it doesn't take Daniel's explanation at face value. At Daniel 4:20, 22 it is written, " 'The tree that you beheld, that grew great and became strong...it is you, O king, because you have grown great and bnecome strong.' " It doesn't get any simpler than that. This was a vision that was fulfilled wholly, only, and solely on Nebuchadnezzar himself. That was also the king's understanding as he writes at Daniel 4:37, "Now I, Nebucahdnezzar, am praising and exalting and glorifying the King of the heavens, because all his works are truth and his ways are justice, and because those who are walking in pride he is able to humiliate." Years later, Daniel repeats that understanding to Nebuchadnezzar's successor Belshazzar, telling him, " 'But when [Nebuchadnezzar's] heart became haughty and his own spirit became hard, he was brought down from the throne of his kingdom, and his own dignity was taken away from him.' " --Daniel 5:20
That puts paid to the notion that the tree somehow represents God's kingdom in any sense, typical or antitypical. Furthermore, the length of the seven times cannot be computed by using the book of Revelation. In the Revelation, John is specifically told how long the "time, times, and half a time" are. He is giving the equivalent measures of 1.260 days and forty-two months. Daniel was told no such thing. So there is absolutely no basis for connecting Nebuchadnezzar's dream in the sixth century BC with twentieth century events. That is only wishful thinking based on shifting interpretations of men. It is not based on sound biblical hermeneutics and exegesis.
As for the "day for a year" interpretation, why is the WTS itself so inconsistent on its application of this so-called "rule"? It wants to use it for the seven times in Daniel chapter 4. But when other time spans are mentioned elsewhere in Daniel's writings, namely the 1,290 days; the 1,335 days; and the 2,300 days suddenly these become literal days and not years! Doug Mason is entirely right to state the WTS interpretation of Daniel 4 should be "shoved into the bottom drawer". While they're at it, they should get into that drawer themselves and 'never see daylight again.'