Thanks Hyrum, The cover artists is one of our regular guys, Jhoneil. He has done several of our recent covers such as Librum Equitis vol 1 (print), Wild Spellcraft, Urban Blight, Witch of Loch-Durnan, and Necromancer's Legacy.
Joe, in regards to source material the majority of the book is adventure. There will be four primary adventures plus "doezens" of encounters and interludes. Many of the brief encounter or interlude pieces are specific to the campaign environment in the book but several of them (along with the four big adventures) can be ripped (figuratively) out to use outside the campaign plot..
However, we always like to provide value with added stuff so there will be races, items, and other new stuff as well as a detailed description of the carrier that has been converted to an Exploring vessel with a town built into it.
I would say, all in all it is 70% adventure, 30% other so it will be a decent mix.