I think absolutely none of that will happen, but I do like the idea of Prime's message kicking him in the behind like that.
These films have been about humans on Earth and are barely about Transformers at all. They're disaster movies, but instead of 'Snakes On A Plane' or 'Twister' it's 'Giant Robots'. Bay's people have a paucity of interest in what has come before and I'm sure the next film will once again be something of their own imagining with lots of slapstick comedy involving genitalia.