I think Terminator: Genesis was a better title than Genesys or Genisys, either way, all i care is for this film to be good, it's been 2 hits and 2 misses for the franchise qualitywise, T-3 and Salvation may have some moments and entertainment value, but they pale in comparison to the first 2. If they ever want to just give closure to the original 2, i always thought that the best way to make it a Trilogy was to have the 3rd film be a sequel/ prequel about John Connor's final battle and decision to send Kyle and the T-800 in time, making sure the time traveling was a loop, instead of having Kyle sleeping with Sarah erase the John Connor from Kyle's original timeline out of existence.
By the way, is James Cameron somehow involved with this? I heard he spoke with David Ellison and both discussed the future of the franchise, so i hope he has his fingerprints over the movie somehow.