5th gen will be broadwell, supposed to be out in a month or two and rumors are they're supposed to start with locked cores, one i5 and one i7. The k series will be out sometime later. So far ipc performance is up a little but speeds are dropped a little and so is cache so in essence it's a die shrink focusing on efficiency. The next notable performance boost will be skylake, still no release date for that yet and it will be socket 1151.