My mom has dark brown eyes, looking black sometimes and my dad has light brown eyes that turn green. HIS dad had blue eyes and HIS mom had a medium bown eyes. When he was a child he had dark brown eyes and now they're greenish light brown. My aunt has very light brown eyes almost looking yellow sometimes. She told me that at my age she also had dark brown eyes.

As of now l have dark brown eyes. Will that most likely change over time?

nope, sorry!

Eye color is the classic example people use for explaining dominant/submissive genetics. Since both your parents have brown eyes, you probably only have about a 25% chance of having the recessive colors, blue or green.