There's a pretty good plan in place should I die in a firey inferno. See this: https://btct.co/faq (What happens if your main developer gets hit by a bus?), also quoted in the OP here: https://bitcointalksearch.org/topic/m.1574481
Doesn't remove all of the risk. But I think the risk to ASICMINER-PT holders is pretty low.
Oh, I also realize that you (burnside) run both the ASICMINER-PT at BTC-TC and BTC-TC itself, so by my rudimentary calculations (assuming that all the exchanges and PT have "fiery inferno" contingencies), owning PT at BTC-TC poses 16% less "fiery inferno" risk, as there are only two entities (burnside and friedcat) to worry about rather than three (DeadTerra, friedat, bitfunder).