Just some stuff from the developer team interview in Dengeki PlayStation:

- no voice chat

- you can swap vocations at any time

- All the gear and equipment in DD/DA are present in the game, along with a lot more new stuff - more than 1,000 pieces in total; you can also craft new gear with materials

- players can log in and switch between multiple servers
- players can create multiple characters in a single account
- on PC specs; obviously players with high-spec PCs will be able to enjoy better graphics, but basically if you're running a decent 3-year-old PC that met the recommended requirements of most games then you'd likely be all right
- the game design is catered towards long-term continual play; there are levelling dungeons and areas, item-based hunts/quests, as well as random/limited quests/events that pop up when viewing notices in the lobby
- can form parties with pawns or other players; like in DD/DA, the pawns are AI-controlled, but you can easily ask another player to join in
- there will be three expansions to the game
- DDON is not linked with DD/DA storyline
- while the Dragon was an antagonist in DD, it is not so in DDON as the players will take up the role of Arisen who are protecting the White Dragon
- yes you still get a main pawn
- the pawn-Arisen relationship is still in the game; you can dress up your pawn, equip your pawn with poor armour/decent weapon etc.
- Fighter = short-range attacker, Hunter = long-range attacker, Priest = healing and recovery, Shield Sage = tank
- in-game party of a maximum of four members; you can play with pawns or other Arisen (mix and match pawn-Arisen combination as you like), or even play solo
- you can still rent out and hire pawns, this feature is still retained from DD
- character generator is also like DD/DA's customisation system, but with more additions; make handsome guys, cute girls, whatever you fancy
- pawns can also craft gear; think of hiring and renting out pawns that specialise in crafting
- armour system is maintained (the clothing and armour layers) with the added fun of customisation!!!!
- the skill system from DD/DA is retained; need to purchase new skills with discipline points
- no, there is no Ur-Dragon-like boss
- but there are raids with eight players!
- more vocations to be added in the future; rather than base and hybrid vocations, let's just say that there's a wider range of vocations compared to previously
- you can even get the NPC armour like Iris' and Leo's
- emotes and clans will be introduced
- the team is confident that if you've enjoyed DD/DA then you will enjoy DDON