Here's some of the changes from 2016:
- The castle on the left of Graal City was updated, adding the new feature of accessories and the warp ring in early 2017. There are also other places to buy accessories now, such as Rebel Accessories located south of the castle.
- New Houses were also added in mid 2017, giving you access to a dozen new designs for free as well as several Nexus-themed ones that can be purchased in River Realtors.
- There are also automated events now, and yes, new events such as FFA (Free for all) and the return of Ice Race as an automated event. From these events you get event tickets which can be spent at MoD Carnival.
I guess these were the main new additions that I can think of from the top of my head, I'm probably forgetting some though. You can always check the old news when you return or the Graal Online Classic Facebook page for past updates.
Welcome back!