Henadic Theologian
Legend
For Goliath, yes. They appeal to some new fantasies that weren't always considered.
Half orc were always just playable orcs, and orcs were always highly visible in modern fantasy. Not sure if it's going to change anything at all.
Aasimar... not as much. Unless these are radically different from dmg/momm aasimar, they will just be holy humans, which... we could do with clerc or pally class. Aasimar are just divine-magical humans; they dont even really look different, to the point a glowy eyed human is indistinguishable from one. It remains to be seen if it's going to beat out gnome as a niche appeal.
Part of the massive popularity explosion of tieflings and dragonborn is that they just -resonate- with certain types of players. People that feel like they're outsiders or disenfranchised are often drawn to these two, especially amongst the LGBTQ community. Or just people that want to play monster boys and girls. Many dms frown on these two as too inhuman and "problematic" to this day, but accept then because they're core. Aasimar and orcs and Goliath are all very human-like, however.
Well, I higher visibility plus a general everything-core attitude means they will see more play. But I'm sure it's because of ease of accessiblity. I wouldn't read too much into it.
Now... if we had Shifters or Tabaxi, Centaur, Minotaur, Gnoll, Triton, etc options... the distinct lack of furry options beyond "dragon" is a bit weird.
I do think Aasimar will be different from the DMG (simplified Aasimar) & MotM Aaaimar (Mearls lore light version), because I think it will lean much harder into the Planetouched Planescape ideal in a simular vein to the new Tiefling (and the Pathfinder 1e Aasimar that inspired it) and MAY the Godblooded/Incarnating Deva Aasimar lore for the Forgotten Realms too. We will see. Plus I think less human looking Aasimar will be an option, a kind of Ardling influence.