Lots of talk about Alicorn Sunny in Equestria Daily. We now know that it is inevitable, as the lore from the G4 is taken into the G5 - which meant that ponies can ascend to the alicornhood through their deeds and special feats. Nothing is greater than reuniting and rebuilding Equestria and taking up the legacy of Twilight and the other alicorns, and that’s what Sunny has set out to do.
But I will not be mistaken if almost everyone here has a desire that Alicorn Sunny will only be temporary rather than a complete ascension, as she has potential as an earth pony for the G5 series. And if she were to be the G5’s answer to “Super Saiyan”, it would be interesting, because we do not know how she can activate her alicorn powers. Maybe just with her friends as a medium for everyone’s magic?
Either way, Alicorn Sunny means three things; first, that the “curse” that held down the magic is formidable, so that only an alicorn can break it; secondly, it will give the fans answers to a very old riddle from the very beginning; the alicorns`s final destiny - whether they die out or ascend away from the mortals forever; thirdly, we will see Mane 6 for the very last time, if they were to meet Sunny in the ponies’ “heaven” or the Elsewhere. Sunny has to go to the Elsewhere to get alicornhood, temporary or not. All the ponies are magically linked to the mysterious dimension where alicorns are created, no magic is needed for this, as the earth ponies, the pegasi and the unicorns are all associated with it. When she returns - the G5 will start.
But Alicorn Sunny could become the Princess of Harmony if she were to gain permanent alicorn powers at the end of the G5 many years from now, as a finale to her generation. There are many more years, and her fate is not nailed down. Hopefully after the Friendship Empire from the last episode of G4 is rebuilt all over the known world. Sunny has a potential empress in herself. And in the background, the Mane 6 and their friends will look down on the rebuilt Equestria, with peace of mind that their example will live on.