Regarding Thailand:
Ayutthaya (1350 AD - 1564 AD) / Sukhothai (1238 AD - 1438 AD)
Ayutthaya becomes the most powerful kingdom in Thailand, even defeating the Sukhothai and eventually the Ayutthaya becomes the most powerful kingdom in all of Southeast Asia after finally defeating its rival, the Khmer.
Since the Kingdom of Ayutthaya unifies all of Thailand, I would place the Ayutthaya as the standard civilization and the Sukhothai kingdom would be a variant. However, this is my opinion, nothing prevents the reverse from being done.
Now regarding the Mughals, for me it doesnāt matter if they portray the 16th century in Age of Empires 4. We already have some variant civilizations that focus only on the 15th century and still focus on an absurdly short period of time.
Age of Empires 2 already portrayed campaigns from the 16th century, and the developers had already said that Age of Empires 4 would go further than AoE2 in terms of time period. Currently, I see that no one can predict what will come, since the creation of variant civilizations is unprecedented, and now Age of Empires 2 is bringing a new DLC that will bring civilizations that predate the āhigh middle ages period (5th to 10th centuries)ā. It seems that the new AoE2 DLC will bring civilizations from the 3rd century, thus opening up a margin for AoE4 to portray even the 17th century. Everyone can see that they are not following any time limit rule⦠and in fact, they are basing it on the close time between periods.
It seems that they want to differentiate the two games so that they donāt have the same content⦠so, Age of Empires 2 will focus on earlier periods and the āhigh middle agesā and at most the ālow middle agesā.
Now, Age of Empires 4 could focus on more modern periods, such as the 11th to the 16th centuries or even the 17th century, but nothing prevents civilizations from the 8th to the 9th century from appearing, for example the āVikingsā who covered exactly that period (but below the 8th century I doubt it, since they want to differentiate themselves from Age of Empires 2). If the 17th century came, they could include the āMaratha Empireā of India and also some of the indigenous civilizations of the continent of North America.
However, these are assumptions⦠but since no one has ever predicted variant civilizations, heroes and even the 3rd century in AoE2, honestly, anything is possible and only time will tell.
In the case of Mughal, I want elephants with cannons, lol. I believe many would like to see these units. It would certainly be possible to make a very eye-catching trailer.