I think the Society says that the "anointed" are the branches of the vine. Of course, in their thinking that is the 144,000 which would include the GB.
In the context of the vine metaphor (John 15:1-10), the branches are mostly referred to as, "YOU" (2nd person, plural). But they are also referred to as those:
'who Jesus spoke to' (v.3),
who 'remain in union (or "abide") with him' (v.4),
who keep to Jesus' "sayings" (v.7),
who 'prove themselves to be Jesus' disciples' (v.8),
and who 'observe Jesus' commandments' (v.9)
I might add that, based on the new F&DS explanation, the WT basically claims that the GB are the "vine" for all practical purposes. They claim you can't do anything if you are not in union with them. But I imagine they wouldn't have the outright temerity to say that. But they do imply it.
Here is the most recent thing I could find on the WT understanding:
*** w02 2/1 p. 18 par. 15 Are You Among Those Loved by God? ***
Rather than producing the fruitage of true worship, Israel fell into apostasy and produced fruit for itself. Three days before his final meeting with his faithful disciples, Jesus told the hypocritical Jewish leaders: "I say to you, The kingdom of God will be taken from you and be given to a nation producing its fruits." (Matthew 21:43) That new nation is "the Israel of God," made up of 144,000 anointed Christians, who are likened to "the branches" of "the true vine," Christ Jesus.-Galatians 6:16; John 15:5; Revelation 14:1, 3.
Just as a bit of personal commentary, Gal 6:16 refers to, "The Israel of God" but links that nation to, "All those who will walk orderly by this rule of conduct," which in the immediate context involves those who look to Jesus.
John 15:5 simply says, "YOU are the branches."
Rev 14:1, 3 refers to the 144,000, but there are no linguistic links in those verses, that I can see, that would require only these to be the "branches" of the vine in John 15.
Such is the emptiness of WT eisegesis. (Eisegesis=personal interpretation of a text (especially of the Bible) using your own ideas.)