First, expect the to lead the next wave of legal and social battles. As same-sex marriage is settled law in many Western nations, the fight over trans healthcare, bathroom access, sports participation, and drag performance bans will dominate the next decade. LGBTQ advocacy organizations are already pivoting resources toward trans legal defense.
If you are interested in the historical and social evolution of these identities, the following articles and resources provide valuable insights: Historical & Cultural Context Toward a Historiography of the Lesbian Transsexual : This essay from TSQ: Transgender Studies Quarterly shemales lesbians tube