Here's something that didn't occur to me before. [@Aeolian]'s description of the 'new' Stigma strain and what it did to the people in the PRS Research Wing is essentially zombification, if I'm understanding it right. 

Would a sort of zombie apocalypse on top of the already existing plot be something for us? It can be as extreme or subtle as we want, but I'm thinking it can add another layer of creativity.

If anyone has thoughts about this, do share. I don't feel the need to tag everyone for this, but it's worth thinking about.