It will get even more interesting sooner or later bitmain will announce a compute chip, which means whatever algo is minable on GPUs will be minable on this chip also, thats how the evolution will go , this will be the end of forking to change the algo it will be useless. This will drive the crypto market to make big shifts a lot of coins will be forced to make an implantation of POS solution or just keep the existing POW algo.