Any ideas for character and lot traits?

These are actually some really nice traits. I especially like the flawed and quirky traits like the Insomniac and Feral traits. Some traits in your list seem to be similar though. Like the Selfish and Greedy traits. Plus, they seem rather redundant due to the Materialistic and Snob traits. Most of your traits are quite interesting though.

I have a few ideas of my own on Personality Traits. Here's my list:

1.) Narcissistic: It is all about them. They are easily confident with themselves, but easily get angry and tense once insulted and criticized. They are often selfish and demanding. Since they already believe that they are "The Best", they often get bored once attempting to learn new skills and tend to learn skills much slower.
This should help with your Selfish, Greedy, and Arrogent traits. Plus, Narcissists can have their own unique interactions. Like Talk about Self and Claim to be Better than Other.

2.) Sophisticated/Civil: He/She is a sim of Wealth, but primarily, Taste. They are often polite, formal, professional, and traditional. Sims with this trait are often liked and respected among the others. Primarily Snobs. But be warned! Never mistake Civility for Ethics.

3.) Technophile: These sims are all about the newest gadgets. Computers, Phones, Portables, even Technological Art! Your sims want to experience the future and experience it now! Technophiles can increase their Handiness and Programming skills much faster than other sims. They often feel uncomfortable or tense once away from technology for way too long. They can discuss the newest Tech to other sims and Hack with their phones.

4.) Morbid: This sim happens to be fascinated with Death. Your sims tend to ponder about Death and will not hesitate to converse with the Grim Reaper. These sims will receive positive emotions for mourning graves and might attempt to call upon ghosts.

5.) Cowardly: These sims tend to get jumpy and skittish. They tend to get scared and tense easily. Ghosts, Aliens, Vampires, Darkness, Death, Their Boss, it doesn't matter. They'll experience fear.
This would be a good trait to introduce the Fear Emotion to The Sims 4.

6.) Brave: These sims won't hesitate to take risks. They are often confident and heroic. The spooky and grim often don't effect these Sims.
I was contemplating on The Sims 4 having a Fearless Reward Trait, but I'm not completely sure since it would be redundant for Cowardly sims to potentially receive/earn this reward trait.

Hope you like my ideas on Traits! Your traits are definitely interesting and I'd like to see some of them in the game.