There is a Kickstarter currently running for a 5th edition fantasy Philippines setting.
It’s a bit spendy. $50 for the one hardbound. $80 for the box set. Or $120 for the boxed set and 2 hardbound books
"The Islands of Sina Una is a campaign setting for the 5th Edition of everyone’s favorite dragon game, based on pre-colonial Philippine mythology and culture, created by a team of Filipino writers and artists from around the world headed by Lucia Versprille. Across its 300+ pages you will find a world of seven islands filled with spirits, monsters, and mortals, with new selections for races, two new base classes, twelve new subclasses, new backgrounds, equipment, spells, and magic items. And additionally, there is an appendix explaining how the book deviates from the real world mythology and culture of the Philippines in its pre colonial eras."
have to say, I am tempted. I don't play 5th D&D but converting to pathfinder 1st shouldn't be that hard.