Welcome back! 6 years is a long time!

Quests have been revamped to be easier/faster to do, Shops have had a revamp to prevent lag, a lot of the site artwork has been revamped, the wardrobe has had a makeover, I think that's only the tip of the iceberg?

If you have any particular questions, feel free to ask!

I don't think there's any specific new trophy that is earnable (ie not for an event), there is a current site competition though, so make sure you check out the news posts (the info is stickied on the top right)

Useful Links:

What to do on Subeta? Useful general information for newbies Finding friends (Chit Chat) SubetaLodge (Offsite item database, pet colours etc.)
FAQ [topic not found] Wardrobe(s) Update!