Board Thread:General Discussion/@comment-25623698-20150419195453/@comment-25464947-20150423212059

My guess is that they have two related powers that combine together to form the future vision. For example Ruby might have some sort of "combat sense" that lets her predict what her opponents will do a couple seconds ahead of time, while Sapphire can see people and objects that are not in her normal range of vision (i.e. clairvoyance). Add the two together and you get the ability to see into the future.

As for the electricity and heat resistance, I think that it makes a lot of sense for Sapphire to have the former and Ruby to have the latter from a character design standpoint. They might still surprise us, but I wouldn't be surprised if that was how the team decided to split them up.