One interesting concept could be alternate versions of Hogwarts. For example, a Hogwarts where the houses have different characteristics or where the magic taught is more focused on a particular type of magic like dark magic being taught openly (in a more morally grey fanfic). Another concept might be different fates for the main characters. Harry could be a Slytherin instead of a Gryffindor, which would lead to a completely different story arc. There could also be crossovers with other fictional universes in the multiversal fanfiction, like Harry Potter characters interacting with characters from Lord of the Rings or Star Wars.
Yes, they can be. Pegasus has been used so often in fantasy stories that it has become somewhat of a cliche. They are a very common and recognizable element in the genre.
A cliche novel often has predictable plots. For example, the love - at - first - sight scenario where the two main characters meet and instantly fall in love without much development. Also, it may use overused character types like the damsel in distress or the brooding hero. The settings can be very common too, like a small idyllic town or a big, bustling city with all the typical elements.
In a cliche Christmas story, you'll often find the element of redemption. For instance, a character who has made mistakes in the past gets a chance to make up for it during the Christmas season. There's also the use of Christmas symbols like Christmas trees, snow, and bells to set the mood. And of course, there's always a happy ending. Whether it's a family getting back together, a person finding love, or just a general feeling of hope and joy at the end of the story.
It expands the story by introducing countless alternate realities. For instance, we might see a world where Voldemort won and how the remaining characters survive and resist under his rule. This creates a whole new set of storylines and character arcs. It also allows for the exploration of different character relationships. Characters who were enemies in the original might be friends in a multiversal fanfic, like Harry and Draco.
Well, in a cliche visual novel, the art style can be quite standard. Usually, it has big - eyed characters which are very common in this genre. The story progression is often linear with few surprises. There's often a damsel in distress or a hero on a journey to save someone or something. It lacks much originality in terms of plot and character development most of the time.