I have to wonder, and, knowing such a treatment would be shunned by the "right-thinking" people, I realize it's unlikely that anyone in the research community would suggest this, BUT:
From my reading of studies, the vast majority of young children who exhibit some form of gender dysphoria lose those feelings with the onset of puberty. (Something on the order of 80-85%, IIRC).
Of course, people are trying to stop that normal progression by blocking puberty in many children.
I have to wonder, since we are performing experiments on these children with the puberty blocking with no concern for the long-term consequences, might there be any doctors willing to perform the opposite experiment?
For those who do go through puberty with persistent gender dysphoria, instead of replacing their natural hormones, enhance them. If normal puberty is successful in resolving 85% of the dysphoric children to their actual sex, might a greater dose of those hormones help some percentage of the remaining dysphoric in aligning their impressions with their sex?
I cannot speak to the outcomes, but to me it seems that a solution that doesn't require drugs, surgery, and sterilization but only requires one (drugs) of that grouping would be superior. And, as after normal puberty, the natural hormones tend to decrease, it is even possible that the drugs would not be a lifetime commitment.
Anyone want to guess if a researcher would even be willing to consider such a thing?
Judging by the reactions to the recent studies on Rapid Onset Gender Dysphoria and the "Detransitioning" studies, I'm betting there will be ZERO support.