This is a big topic and one that I cannot give a definitive answer.  Perhaps the broader question underlying this is: "Do any people or entities personify true evil or do some people act in an evil manner but can be redeemed?  Spiritualism's 7th principle states:

We affirm that the doorway to reformation is never closed against any soul here or hereafter.

I assume this is referring to a human soul.  What if we acknowledge that there are extraterrestrial species present in our and other galaxies?  Do the principles still apply for all life forms, here and on other worlds?  Natural Law should apply to this scenario.  But would alien species understand the concept of "evil" the way we do?  Sorry to open a metaphysical "can of worms."  

The idea of a being totally motivated by evil is ancient.  Can science prove or disprove this idea?  Many people seem attracted to the idea of "dark forces." Look at how many tv programs and radio blogs are filled with horror stories filled with evil-doers.  Besides the rush of adrenaline associated with scary stories, is there a suggestion of "what if some of this evil, scary stuff is actually true"?

My only suggestion to be in a place of harmony and balance is to find and keep your connection to Source and all Higher Beings.  Know that each of you is loved and supported beyond your imagination.

We are indeed in a New World; not sure if it is a Brave New World or a Reckless World.  In the not too distant future, wars will be waged by AI and robots.  Will our world be a place where Spirit Communication continues to be possible or will those who have crossed over find the environment a bit too strange and inhuman.  Will mental mediumship, séances, demonstrations of mediumship, and home circles be completely supplanted by electronic devices that give clear and irrefutable examples of Spirit communication?  What will progression of the soul mean in the years to come?  Questions and more questions.  Not only does time seem to fly, it seems to be so malleable that all human relationships---physical human to physical human, Spirit human to physical human---are recalibrated.  Where do you stand on these issues?