Don't worry about Asics.  People are not going to be mining your little piggy coins with those monsters.  There are 100 more profitable and stable coins to mine.  Besides that, there are no buyers on the exchanges for them to dump massive piggy, so don't worry, keep it PoW, but if you are worried, just switch it to Scrypt-N, that will keep asics out, but not go to a totally new or unproven alogrythm.  But of course that requires a hard fork.

P.S. What is piggy week?  Some clues please.