I know I have said it before but I’m pretty sure even with Alicorn Twilight everything will still be 90% sautes quo. It has already been stated that she is still living in Ponyville ( though I am sure there will be a scene in the premier were Celestia asks if she would like to go back to living in Canterlot and perform her Princess duties there, which of course she would decline ), the only real difference I can see them doing is the citizens referring to her as Princess Twilight/Your Highness ( which with the ponies she is closes to outside her friends like the Cakes and the rest of the Apple family she would most like tell them to drop the formalities ), her learning S class level spells, an Ep. were she learns how to fly, an Ep, where her and the rest of the Mane 6 are going off to some distant land ( The Griffon Kingdom, Saddle Arabia, etc. ) to meet some diplomats, and at times scenes of Twilight going over some paper work.