Kamal? I wanna hear your theory.
More like speculation on my part, but I'll do my best to explain it:
Aldmeris is Altmora is Kamal.
The ehlnofey are the fore-fathers of most of what we see in Nirn, they are known as the creators of ehlnofex or being giants.
Ehlnofex holds the most presence in Aldmeris and Altmora. Both continents holding mer and man whom left in the merethic era.
Both due to devastation, civil war etc. Giants held a strong presence on the continent of Atmora, according to MK's 'Talos meets King of Atmora' image.
How about it, if it were the giants (non-ehlnofey) that were the ancestors of the orcs, man and mer? they have the physical resemblances.
There is no known creation story to link them as such, except perhaps the naming of the dwemeri to 'dwarves'. But I suspect they are mistaken
for the ehlnofey many times over. The true ehlnofey I'm sure would be too large to comprehend, but their children (giants?) might not be.
So let's say that this was true, let's say that the giants were the ancestors of nords and aldmer in Altmora. The memory or racial heritage
of Aldmeris being a mere fabrication that was developed after long years of being away from their native homeland. Could the location
work? no, it couldn't. Aldmer arrived on mass from the south, southwest, meaning Aldmeris was likely to be in the south west from Tamriel.
However, if we add in the distinctive similarities of Altmora to Kamal, Akavir, we have a solution. Akavir is directly east of Morrowind, Tamriel,
how far? not many are sure. It could be directly opposite to Tamriel on the global scale. If so, one could find themselves on Tamriel from any direction.
I think there's a lot of lore that supports this: akaviri have landed in the north, east and I believe even High Rock or Hammerfell once.
But what are the distinctive similarities between Altmora and Kamal you ask? giants (Karstaag), dragons (Akaviri), snow hell (freezing to death)
and the fact that the Kamal Invasion of around 2E 550 went to Skyrim first. Not Morrowind, like was intended eventually, what with the climix at
Red Mountain. I could add that Khajiiti, Imga could be descendants of ancient colonial Po'Tun, Tang Mo, that moved to Tamriel under possible strife.
Like pretty much any other race in TES lore when it comes to colonising another continent, it has to be in turmoil as a ground rule, first, heh.
Well anyway, that fills in my theory. Not a great one. Quite lacking for some facts to fill the connection with giants, but looks alright.
Also as another note: both Aldmeris and Atmora are described as city(-state) continents, the same can't be said about other continents in that era.