We all know what’s been going on with the Main 6 and Tempest while they were away from Equestria. But, the biggest questions would be: What happened while they were gone? What could the Storm King have done while he took up residence in Equestria?
He treasured his journal very much. To be honest, he'd rather be writing down on it than shooting guns. He wrote down the dreams and desires of his fellow brothers-in-arms. Pinkie Pie happened to have that same journal in her hooves.
Set after "We Regret to Inform You" :D Pinkie Pie becomes a mother of six children, not including Pound and Pumpkin Pie-'cake'. Pinkie and Cheese then marry and have kids. The Twins now have to deal with sextuplet additions, making a huge family! :)