From this ask meme.
“How do they see themselves 5 years from today?”
This is kind of depressing, but I think when living in Underfell, Edge would probably expect to be dead in five years. Maybe he wouldn’t quite voice these thoughts (and perhaps he’d also be clinging onto the small bit of hope that he’d survive) but… yeah. If not that, then I don’t think he’d even consider planning that far ahead. Better just to take each day as it comes.
I think his outlook on the Surface would be a little less dreary though. I really like Kit’s headcanon of Edge being a teacher, so perhaps he’d see himself becoming an increasingly positive influence on the lives of his students.
Outside of work (again, angst warning) I think he’d hope for a better surface existence for monsters. I have a pretty strong headcanon that humans would be completely unaccepting of monsters from the moment they arrived on the Surface. I think Edge would definitely like to change this, although in truth, the idea of battling a brand new enemy after escaping the Underground would probably be a bit daunting to him. I think – while he’d never tolerate the humans’ racism – he’d prefer to settle down and enjoy his life in peace.