Huge storyline, like a really, really huge storyline with lots of DLCs
Huge chraracters creation possibilities (like a wide range of races you can choose of for your character, tattos and others)
Lots of side quests or faction based side/primary quests just like in New Vegas or Skyrim
Space/Flight/Air combat with X-wings and everything
Wider range of armors/weapons/clothing
Talking/Chat system just like Skyrim or New Vegas (not Cinematic just like KotOR)
Possibility to have a wife and/or child
Possibility to own a house and/or spaceship
Possibility to travel freely between planets
Possibility to choose the era you want to play in (Pre Movies Era / Movies Era / Post Movies Era)
Start as an normal person, not a Jedi or a Sith and be able to become one if the player wants to
Combat system like Skyrim or New Vegas but enhenced to introduce the Jedi/Sith techniques and powers
Possibility to become a bounty hunter (or have any side jobs) to earn credits
Possibility to switch between the first and third person
Food/Drinks/Drugs and others (Not just medpacks)
Possibility to have NPCs partners/companions just like New Vegas and Skyrim (Not companions you control like in KotOR series)
That's all I got for the moment, I might add stuff later so expect some edits in my post.
Tell me what you think about it.