Yeah Bill (Marsh), this blade seems to exhibit far too many Indo/Malay keris features to be a Moro kris. There is even a very well developed (and extented) tikel alis. The gonjo, as Kai already stated, is much more an Indo than a Moro form. And without a good staining i wouldn't even be so sure that the pamor is a low contrast material (i really think you should stain it Bill
).
Bill (the other one), i am with Kai and i don't believe this keris necessarily pre-dates the Moro kris. No, a relocated Indo/Malay smith wouldn't "just start making a "kris" because he is on Philippine soil". He would be asked to make one because that is his skill. If indeed this blade was made in Moroland and is old enough, it could be that it still exhibits Malay/Indo traits because it is transitional from Indo to Moro need. Still, if i were a betting man
i would wager this blade was made in Indonesian (Sumatra or Sulawesi) early on, but still after the introduction of Moroland kris.
Kai, you may still be right about Riau or the Straits, but this type of pamor looks more like what i would associate with Celebes or Sumatra.