Whether you choose a hairline lowering through transplants or a trichophytic incision and scalp advancement technique as your initial procedure to lower the hairline, you will likely require further treatment in the future if male pattern baldness begins. You should of course use medical therapy such as PRP, Rogaine, etc..., but if you loose hair along the hairline incision, this could be disguised in the future with transplants. If you go the hair transplant route initially through FUT or FUE, then as your hair loss progresses in the future, you would likely undergo additional grafting procedures behind your hairline. You did not provide a complete picture so it is impossible to tell whether you are male or female, but this answer pertains to males.