It's important to verify the complete 1926 Watch Tower quotation that follows:
“Answer: Certainly they have not returned. No one has seen them, and it would be foolish to make such an announcement. It was stated in the ‘Millions’ book that we might reasonably expect them to return shortly after 1925, but this was merely an expressed opinion;besides it is still shortly after 1925. There is no good reason why we should expect the ancient worthies to return until the church is complete and the work of the church on earth is done.” WT 1926, p. 196.
The highlighting above is mine to make clear that there may be a problem with the way the 1980 Yearbook transcribed it -- after reconstructing it.
“Answer: Certainly they have not returned. No one has seen them, and it would be foolish to make such an announcement. It was stated in the ‘Millions’ book that we might reasonably expect them to return shortly after 1925, but this was merely an expressed opinion.”
See the difference in construction? The 1980 YB replaced the original semi-colon character with a period.
I think it's fair to say that WT writers in 1980 were well aware of the ellipsis (...) construction which signifies where portions of a quote have been omitted. By replacement of a ";" with a "." they knew the reader could be led to believe that nothing in the sentence followed. A period completes the sentence.
What actually followed? Well, that sarcastic Rutherford retort to that reporter concluded with, "... besides it is still shortly after 1925." He was clearly still trying to leave the door open, implying that he may have been only slightly off with his prediction.
There you have it. We have a need for verification, best if from a scan of that Watch Tower page. If not, several other sources.
Len Miller