There should, indeed.
I did a
Hirelings feedback post a while back, and I realise that I forgot this in the Suggestions/Requests paragraph. I mean ... it partly depends on what Larian's vision and intent for the Hirelings system is. (I would like to believe that they have a clear vision and intent ... though admittedly I am currently not very convinced.)
Because one question about the Hirelings being limited to 12 is this one : what happens when Hirelings die ? Are we supposed to have a hard limit of 12, in which case we shouldn't be able to create new ones, just modify a Hireling's identity (appearance, name, etc). Or are we supposed to have unlimited Hirelings, in which case "modify a Hireling's identity" and "create a new Hireling" are equivalent.