1. More practical/fashionable clothing options (aka, no more silly sleeveless Balgruuf or no bikini fur armor, capes and cloaks, maybe toss more trench/longcoatiness too)
2. Bash lock/ unlock spells. Teleport spells, more powerful Telekinesis (who wouldnt want FUS RO DAH-levels of power in their Telekinesis, throwing heavy objects at enemies, etc)
3. hardcoe mod (complete with portable sleeping device [tent/bedroll])
4. VASTLY improved follower AI
5. a "Become a Jarl" mod wherein you become a jarl, complete with your own city to keep, defend it from bandit attacks, dragons, etc