From the announcement:
Hobbyists often wonder: "What miniatures should I collect next?"
Sometimes you're looking for a little extra inspiration or some ideas to help kick-start your hobby - especially in January. We get it. So at games-workshop.com we put our heads together to give your imagination a prod, and we came up with a unique selection of themed collections.
We've called them One-Click Collections, as they instantly give you a characterful range of Citadel miniatures. You can use them as a fine-looking painting project or the start of something even more ambitious - it's up to you.