Found something in 5e that references alignments last night while planning a build (I wasn't going out of my way to look for uses of alignment in D&D 5e, it just happened). The Divine Soul bloodline for Sorcerers has multiple choices for spells and abilities based on alignment (called affinities in the text descriptions of the class). That's from Xanathar's, but I don't know what Larian's plans are for material outside the PHB. But if Larian doesn't want to make a big deal out of alignment, then I'm betting that this subclass won't make the cut.
I understand most of the arguments for and against alignment. I still like it and want to see choices in the game that are black and white in addition to shades of grey. I certainly wouldn't force the alignment system on anyone in tabletop, but I like having some clear heroes and villains in a fantasy setting. YMMV, obviously.
