Why should SF series keep being remade? The list of remakes as well as proposed remakes now includes BSG, The Bionic Woman, Blake's Seven, Knight Rider, and The Survivors. If any more SF series are going to be remade, then they should be as obscure as possible, and originally made in B&W, then that might be a good reason to remake them!
Actually, I've got a few ideas for new SF series, so if any producers are reading this, why not contact me and see if you like my ideas?