^Like I've said from the beginning, Hold My Hand is still not confirmed for the new album although it's always been a strong contender. People following Riley's tweets will see that alot is not 100% confirmed yet which is why a few of my posts can seem contradicting at times. It's hard to report information like this and always be 100% accurate. Not even MJ could manage that.
Promotion begins with a press announcement and then with the launch of the single. November will be big with interviews, advertisements (television, magazine, billboard, radio, internet), etc. In a way, this is a good thing because it allows momentum to peak right when the album is coming out. It's a shock marketing campaign, that will literally come out of nowhere.