I don't think 6th season would end, they're just changing the direction. They have turned bad apples into good apples (Diamond Tiara, Discord, Starlight Glimmer) The CMC finally got their cutie marks (and, even if it's a show, even if they're not real, even if im a grown up man, i've cried a lot with this episode and got a proud feeling about them) The "Map" have new undiscovered abilities (Such connecting all of equestria via space/time) the crystal baby (if you know what i mean) and more importantly, new type of ponies, the Bat Ponies living on the mountains (http://www.equestriadaily.com/2013/08/lauren-fausts-take-on-bat-ponies.html
) also, Twilight is still the only princess without guards on the castle, We need to know about applejack parents, we still don't know anything about Scootaloo past and we still are waiting to see her fly, we haven't seen chrysalis kingdom (remember she didn't died as, for example, king sombra) and also, an episode "meeting" starswirl the bearded (maybe twillight travel past to get an important spell from him lost in time) i think MLP have tons of things to show, tons of things to offer and tons of people following/loving it. it's a good business for hasbro, and the pony sellings haven't been so good in decades. not just "Girls" buy them, grown up people buys them, the "BronyCon: The Documentary" proyect got in donations near half a million of dollars. that never hapend in history with... anything, no tv show had that repercussion. people loving it, hating it, whatever it be, people speaks about it, go into YouTube and you will see a pony face avatar on every video.