It's been repeatedly noted that Khoravar can and do reproduce amongst themselves, specifically because the ability to do so helps to reinforce their distinct cultural identity, but I don't think it's ever been said that Jhor'guntaal cannot do the same. The cultural context they tend to arise in...
Lorewise, Jhor'guntaal (Eberron "half-orcs") are ostensibly still a thing - they make up the bulk of House Tharashk, one of the dragonmarked houses. The only real difference between them and Khoravar is that Khoravar are known to have their own majority Khoravar communities and distinct cultural...
Never really been mechanics minded enough to judge what is or isn't balanced when it comes to class design, but I'm really liking this take on the Psion.
Was a big Boruto's Dad Naruto fan for a while back in high school/early college and the Metamorph in particular is giving me major Kimimaro...
Don't have much/any real practical experience on this front, as I am seemingly forever an aspirational "armchair DM", but theorycrafting how to go about porting various adventure modules/paths/etc. into a new setting (primarily either Eberron or Planescape) is a favorite pastime of mine, along...
As always, alignment is merely a suggestion.
The only creatures that have their default alignment hard coded are planar outsiders like angels and devils, and even that isn't absolute, given the plethora of examples of fallen celestials and (admittedly far fewer) risen fiends.
I suspect the "official" 5e version of the eldritch giant is the fomorian noble, introduced in Bigby's Glory of Giants to represent fomorians that opted not to join their brethren for the doomed invasion of the Feywild that got them all cursed by the Fey powers.
I believe they mostly live in...
Seems to have been merged into the news thread:
https://www.enworld.org/threads/d-d-launches-new-eberron-themed-playtest-with-dragonmarked-feats.712061/
Personally, I can't envision Eberron without at least SOME firearms, but admittedly, that's in no small part because I've had an Eberron Savage Tide conversion stewing in my head for way, WAY too long and one of the immediate aesthetic touchpoints I'm working from is the Pirates of the Caribbean...
Honestly, I don't think that's too hard to work around.
Pathfinder 2e has a playable merfolk ancestry with a feat option down the road that allows them to swap their tail for a pair of legs when on land - PFS gives this feat to merfolk PCs at level 1 for free. Exploring Eberron does pretty much...
I mean, per Planescape canon, certain factions of celestials have been covertly forging and selling weapons specifically enchanted to bypass demon/devil damage resistances to both sides of the Blood War for eons...
4e lore.
All "high elf" subraces got consolidated into the new eladrin PC race, defining them by a stronger connection to the Feywild - part of the same cosmological overhaul that saw the celestial eladrin of Arborea moved to the Feywild, essentially as the PC eladrin's older, more powerful kin...