Do you believe demons will be on earth at the end of times?

Me and my friend was having a discussion about the coming antichrist and his fallen angels.and in the bible it clearly states in the book of revelations that Satan will soon get the key to the bottomless pit,which will release demons from out of the abyss.and they will torture the people on earth that do not have the seal of god.the reason I'm saying this os because I get worried for my family and friends that aren't living right.the bible also states that the demon will have the faces of men which clearly means one can be in your face and you wouldn't even know it.and it could be anyone mother,dad,sister,brother,bestfriend,and that's what scares the sh## out of me.imagine at the end of times and the world in chaos and the only person you think you can count on is a d### demon.