A liable possiblty for Aliens.. one you may not have heard about..

I have to say that humans will not evolve further unless our technology somehow is destroyed. Evolution is an adaptationary process in whic a life form changes to suit a new environment.

Humans do not do this.

Humans do not need to adapt because we change the environment to suit us. There is no reason for us to evolve becuase no matter where we go it ends up a suitable area for mankind