@Worst
what i remember:
1. multiple "damaging" abilities will be flying around (ones that remove 1HP) but faction kill and omega kill igore this mechanic
2. there will be a shop where you can buy abilities for gold
3. there's permanent night chat, you can vote for people to be there, up to 5 votes per person (there are 5 spots)
4. flower claimed immunity to duels and execute
i don't think there's more mech things, mostly setup speculations