Novellas:

Fated, Always, Laid Open, Cake and Believe are all novellas or short novels. They are too short to go to print on their own. Sometimes a publisher will put a few shorter works of an author together in one volume so they can go to print (usually if they are on the same subject/series/genre). Other times publishers might combine a few different authors’ shorter works into an anthology. At this point I don’t know of any plans for the books I name above to go to print.

Digital first:

My digital first books from Samhain, granted they are long enough for print, will release in trade paperback six months after digital release. Carina goes on a case by case basis. Goddess With A Blade (and all the others in the series so far) released in mass market paperback in December 2013 and later in trade size. I don’t know of any plans for Second Chances