I get that this show has it's stereotypes and all, but that was the most sappy, stereotypical one that someone could've come up with. I'm just giving my two cents on your thoughts.
Ok, my idea is that it ends calmly with them just kind of contemplating life and all they have gone through while they are just doing their normal rounds. Finally it ends with Twilight reading and contemplating harder than the others. It ends when she thinks about the first time she got to Ponyville (To bring back old emotions of when people first started watching the show and getting happy and excited feelings about it) and then they cut it off there, but calmly to let the emotions sink in.