Key of Destiny takes place six months after the War of Souls trilogy and involves an epic story featuring a *major* artifact of Krynn (even though you specifically asked I'm not sure you really want me to spoil which artifact), and the trilogy is promised to make some pretty major changes to the world of Krynn.
Not "world shattering", they're shying away from that after so many such events in the novels, but I know what's ahead and I can vouch that its pretty significant. It'll have a definite impact on future novels, but the events in the adventure trilogy will never be actually be told in novel form, only referenced by future novels, ergo you get to affect the world but not by living in the shadows of other heroes, or simply retracing their steps.
The pacing is very cinematic, with lots of great paths to the conclusion, not a lot of railroading, the paper is super glossy and the art is great (the interior art is done by Udon Studios, quite popular for their work on the Exalted RPG.)
I must say I'm extremely impressed with it.