I am sorry. I read and treated title of your post:" What about the three ta'veren?" literary, as a question only, and not as a very reasonable idea, I guess it now, that the meaning of the prophecy: "The three shall be one" can be that, the three ta'veren should meet in one place and act together with common understanding and the same aim. There are many reasons for it, for example necessity to have in one place all three of them to use Horn of Valere against invasion from the Blight. They are already connected, probably to act in unison. Brandon Sanderson told some time ago, that they will meet together at the end of the ToM. It will be nice, if you would elaborate your idea in a form of detailed theory.

However, I do not believe that three boys will melt into one person.

I wrote may previous post in some not serious manner. I sincerely apologize for it. I did not, and I do not intend to be arrogant or rude to you or to anybody.