I guess that would depend on how well or how horrible FR fans thought you integrated them... of course using portals to other worlds (one of the oldest staples in the fantasy genre) you get to avoid all that messiness.
Yes but you are the only person your homebrew solution has to please.
I'm not sure it avoids any messiness, it just creates a different type of mess. And I agree my homebrew works for me and not necessarily anyone else, but if they were well integrated (why assume they'll botch it) it would seem to work better than simply "portal shenagins"
I mean, think about the table. A wandering Knight of Cormyr, a Sage from Candlekeep, A street Urchin from Baldur's Gate, and a Soldier of the Last war who fell through a portal to a strange new world where nothing is like they know it. No RP hooks unless we tie in planar travel from level one, no former contacts unless we brought in more than one person from Eberron. I'm not saying it can't be fun and interesting, but the last few times I saw someone pulling "I'm here because of a portal across dimensions" it ended either not mattering or being a pain in the butt.
They are different settings though... not sure lumping them together does anything but make it more confusing in discussion.
But they both create a "meta-setting" overtop of the normal settings of DnD to allow consistent and easy travel between those settings if you are "in the know". Sure they are different, but in that one aspect they are the same and that has been the thrust of the conversation
The point is your character doesn't know for sure if reality shifts every day, once a millennia or never (in other words the Planescape setting leaves this type of question up to the DM, who can choose to answer or not answer it as he sees fit). So no things don't change so much that they are completely unknowable... it's that the true nature of the multiverse, all planes of existence, alternate worlds, heavens, hells, etc are just not known with complete certainty and objective correctness by anyone. I think it's pretty silly to think something like all the planes of existence would be perfectly known, succinctly explained and meticulously cataloged much less easily comprehended and conceptualized. even in most science fiction this type of knowledge about a single universe or galaxy, much less all of reality, is incomplete and there are usually fringes at the edge of the galaxy that are not completely known or mapped... why would one expect more from a medieval-esque society?
Why should we not expect that Gods, Fiends, and Celestials cannot fully know the extent of their realms?
Medieval maps were far from accurate by today's standards, but they covered the landmasses decently well, well enough to know truths about. And in DnD we have lots of things which would make mapping easier. Immortals (or people with lifespans in the hundreds of years) who could take the time to travel these places, magic to allow the mapmaker to literally get a bird's eye view, ect.
Sure, places are more dangerous, but it can be a reasonable assumption that maps are of at least adequate quality.
And sure, some places of the planes no one cares enough to explore. Who cares how big the plane of fire is, it is pretty much all fire except for a handful of locations. But whether or not the City of Sigil exists, that's a pretty cut and dry question. And yet, there are settings where it is never mentioned, and different places take over that role.
Somewhat. Spelljammer posits some key facts that apply to all connected settings - that there are other planets out there, that they (almost all) follow broadly circular orbits about something (not necessarily a sun), that systems are encased in Crystal Spheres, and that the Spheres are then connected.
The key difference, though, is that Spelljammer says almost nothing about the planar cosmologies - it leaves the door open for Krynnspace to be connected to a completely different set of planes to Greyspace, for instance. And since most settings are much less likely to talk about what lies beyond the moons than they are to talk about planes, gods, and the associated mythologies, there's less likely to be a contradiction - just things that have thus far not been mentioned.
Okay, between the two ("we are talking space not planes so who cares" and "nothing can possibly be known for certain") Spelljammer sounds like the easier to integrate into other settings.
according to The Mighty Gluestick YouTube channel, Warforged do have a place on Faerun: most are the creation of gnomes from Lantan, although a small number originate from Thay.
I agree that that is what I would say about them. Especially since I know Lantan was destroyed "recently" and the warforged could have been spending time rebuilding sections of it. It isn't like a lot of people officially got to a place that has been wiped off the map.