1. Factions : planned but not implemented yet ? So this plan is on a roadmap? ETA
2. How many NPCs in the world ? Will there be faction based NPCs roaming the world ?
3. Can you create your own town (faction ) and expand on NPCs supporting you or the faction you joined?
4. how many missions does the game have how long will you be busy with them ?
Some questions current state and Future
Hi and Sorry for the late answer!
1.Actualy there is no faction system planned in the near future
2. Actualy not
3. You can create your own Village/Town and you will be able to hire some NPC guards defending it ( usefull for pvp servers )
4. There are still not all quests implementet - the devs are on it