How does 'How to Train Your Dragon' fanfiction handle the meeting of the past and future?

Well, you could have the main character learn self-defense skills or find a supportive friend to stand up with them.

Well, it varies. Some fanfics might use the injury as a plot device to drive character development, while others might explore how it changes the dynamics within the group.

You could give the half-dragon unique powers and struggles. Maybe it has trouble fitting in with either dragons or humans.

Well, you could start by imagining unique adventures for the dragon child. Maybe it discovers new powers or makes special friends.

Well, including such explicit content is not a good idea. Fanfiction is better when it explores character development, new adventures, or expands the world of the original work in a meaningful way without going into such inappropriate territory.

You could start by imagining a unique backstory for Hiccup's reincarnation. Maybe he retains some memories from his past life or gains new powers.

When dealing with mature content in How to Train Your Dragon fanfiction, you need to consider the age group of your potential readers and the terms of service of the platform you're posting on. Also, be tasteful and avoid going overboard.

Avoid it completely. Such content is not appropriate and should not be engaged with.

You could have other characters care for him, like Astrid bringing him medicine and soup.

The future of How to Train Your Dragon fanfiction can be explored by imagining how the characters evolve and grow. Maybe they discover new lands or encounter other mythical creatures. You could also play with different timelines and alternate realities to add excitement.