Some proposed GSoC projects may require creating new runcores with dynpmcs. Currently that is not possible but from the following conversation on #parrot, it seems that the groundwork is there:
dukeleto> whiteknight: what stands in the way up pluggable runcores right now?
whiteknight> just hasn't been implemented, to my understanding
cotto and chromatic have done all the necessary encapsulation and prettification wok
chromatic> We needed pluggable runcores to make the profiling runcore work, but we didn't need
dynloadable runcores so we didn't implement that.
whiteknight> right, there wasn't a use-case until now
Pluggable runcores remain possible but having them doesn't seem to be either necessary or especially beneficial. If nobody can provide a compelling reason to keep this ticket within the next week or so, I'll consider it safe to reject.
I am +1 to reject this as unnecessary
+1 from me as well. There's no real value to be had from all the extra work it would take.