I know that what I will list below has already been voiced more than once on the forum, but nevertheless, this is what I would personally like to see in the game.
1. New playable species: Bothan, Chagrian, Devoronian, Pantoran, Tholothians.
2. New planets: Mandalore, Kashyyk, Dathomir, Ryloth, Bothawui, Lothal.
3. New Strongholds: Hoth, Cloud City (like on Bespin), Corellia, Tython/Korriban/Ord Mantell/Hutta (small flat like on fleet), Voss, Oricon, Onderon, Flying Balloon or Barge on Tatooine, Moving Crawler, Tower (like Ezra Bridger).
4. Day/night cycle in Stronghold or the ability to choose the time of day before entering stronghold.
5. Flying mount (somth like Thranta).
6. Opportunity to grow and train your own creature mount.
7. Event "Real life": getting debuff: hunger, bad mood, sleepy, lazy, headache, appendicitis. Missions: visit to the dentist, repair broken mount or somth else.
8. More civilian armor.
9. Tattoos and marks/scars on body.
10. Helmets for specific species (like zabrak, togruta, twi’lek, nautolan).
11. Add regen «Marksman-H training remote».
12. Cybernetic body parts. It can be either customization or armor.
13. Companion Tusken Raider. I know you can dress almost any companion in sand people clothes, but I would like to have a story related to the Tuskens.
14. Full ignore in PvP. I am absolutely not satisfied with the half-hearted ignoring in PvP, I do not want to be on the same team with players who come to PvP for achievements or to complete another Weekly and stay AFK in stelth. Since you have tied the receipt of rewards to Weekly, it will be fair if only victories are counted for Weekly. In PvE you need to kill boss for reward and achiv.
15. Tracking the storyline.
16. Start a family.
17. Creating biography.
18. Remove names from banned/inactive accounts.
19. Get a conquest reward for every 100,000 points on one character: it will be fair for players who play 1-2 characters and get only 2 rewards, while other players play on 10-15 characters and get 10-15 rewards accordingly.