I think it should be about hobgoblin and harry osborn turning into green goblin. In the first movie harry swore vengeance on spidey (which I thought ment😖equel!). He could take over oscorp and be stressed and overwelmed by work (and maybe putting peter of). Hobgoblin could have adapted versions of the original green goblins equipment (like gun on one glove) and a different colour on his costume (somethink dark I think) and maybe a cape. He could have found blueprints of the glider and things (maybe formula too), built/found them and knew osborns secrets. Harry could find a copy of the originals equip (and an extra formula, but thats unrealistic, what lab would he use plus he is not that smart?). in a secret room or something. Hobgoglin should be first and then green goblin and they could have like a little war and spidey in the way or something.
Maybe mj and peter should get married. 😄