Yes, July 1 is the new final date. It's best not to sing because we have no way of know if it's violating copy musical copyright. Music copyright is completely screwed up and the music industry are complete and total jerks. We have no way of knowing if we what someone is singing is copyrighted or not and if it is, they can get the game pulled, it particularly bad that that game footage can go on YouTube and that process is completely automated. Your song seems like it's pretty safe, but it then opens the floodgates and it's easier if we just have a "no music" policy. The music industry is full of complete shithead.