Remakes walk on a thin line. To a remake right, the films need to play with the same elements of the previous film but not be a carbon copy. A good example of this would be John Carpenter's The Thing. Some people may forget , but Carpenter's classic horror film was a remake to "The Thing From Another World". Yet, rather then copying the movie frame by frame, Carpenter took the idea of the film and recreated into his image; and what we got a film that exceeded its predecessor.
There is no stopping the creations remakes. Sooner or later, may be getting a revamp. However, this should give filmmakers a perfect opportunity to take movies that they love and turned into something refreshing. However, filmmakers should also remember where these movies come from and never try strain the source material. In the case of Robocop, only time will tell where the film stands. However by watching the trailer, I feel there is an 80's tone to film; so that should count for something.