Frogster has provided just that with the latest patch to Runes of Magic. This morning's downtime added patch 3.0.4 "The Mystery of the Temple" which brings exciting additions to the game everywhere you look. A new instance, new public encounter and new guild events should satisfy your taste for adventure, while the return of the Juice Festival will keep the party animals happy.
If you're in the mood for a serious challenge, go in search of the newest world boss, Sesphiroth. Rumor has it that he's guarding a treasure, so your reward may be more than just the satisfaction of a job well done.
More information on this patch -- along with a trailer for the new instance -- can be found on the Runes of Magic site.