Mercurius
Legend
In my eyes, "Players Handbook" = "Forgotten Realms Players Guide". Since it already is a specific setting, I imagine it would continue to look moreorless the same. Moreorless the same format and same content. There is no alignment in the Players Handbook statblock for Elf, whether Drow, High, or Wood.
I am guessing, they will make the Drow description a bit more sophisticated, and highlight several different possibilities. Hopefully they remove Evil color coding. I hope the Drow were always black before Lolth and will remain black when there is no Lolth. That would be retcon to the Forgotten Realms lore, but most players are on board with this?
And let's be honest: part of what makes drow so cool is their distinct appearance. I remember loving this picture from back in the day:
And that's a pretty sexy man-drow for you, Haldrik ;-).
That aside, the Realms already has variant sub-classes of elves: moon, sun, etc. I actually like that treatment better than the core rules, but it might be best staying as the Realmsian versions.