Geobra is testing the waters. If the idea flies in terms of sales, you can be certain we will see more figures in the future - exactly like Lego does. I particularly don't really like the concept of "mystery bag", but unfortunately not knowing what you are buying does boost sales, but if that what it takes to periodically have a new wave of special
customizable klickies hitting the stores, so be it.
So if Geobra does invest in the concept, you can bet they will put out all sorts of oddball klickies. But for the big themes (fire/rescue, victorian, etc) I bet there won't be many. That's what the specials are for, one klickie in one box that you know what you are buying. Unless, of course, they axed the special concept, which I think is unlikely
.