I'll be releasing these myself through Tengu Models, should be a month or so to get them cast up with my next batch of figures. These will be in a pack of four and I was thinking either a sorceror or a thug with sawn-off shot gun as the fourth figure. I will be sculpting a sorceror but would it be more useful as a single figure? 
Lovely figures, in awnser to your question I would suggest releasing the pack of 4 with the shotgun figure, and have the sorceror as an individual figure, you could then perhaps offer a deal e.g. two packs of thugs and a sorceror, either for a special price or with another figure option (thug emerging from sewer, female thug........)
I will definitely try to find a use for these.