They have a term for this in elements of internet culture; they call it being "transtrender".
It will never become an epidemic or anything, but there will always be folks out there on the fringe who are not well for whatever reason (or are outright disturbed) and are highly suggestible. No one who is well would ever want to choose to be a TS and deal with all the pain and suffering that goes along with it. Unfortunately, there will always be some tiny number of people out there who are not well off and may see it as some sort of trendy thing or advantageous in some way, maybe as some way to try to deal with other issues they have, or maybe as some way to score victim points or something. Maybe they are gender non-conforming as men, not able to live "successful male" lives and may somehow think life would be easier as a woman. This is absolutely crazy of course, but there is no shortage of crazy people in this day and age.
