Definately... it was really difficult to get the dates right. I could'nt find any sources about when the caecilly incident took place and then there was this line about chimeres son, so I imagined that it could not have been this far in the past. Well, I do'nt think that the exact date is that important. :-)
Thanks! Great that you like it!
The fact that the Thalmor are still present on the island is a solely personal preference. :-) I really like them as antagonists and would like to implement them in the storyline. Of course these personal preferences should always stand back, when official lore is in the way. I totally understand that and - to be honest - I'm not totaly satisfied with this part of the story either. As you say, it makes sense that they are on caecilly, but maybe we can find a more suitable way to explain there presence.
Maybe we can smuggle a covert thalmor operation on the island or something like that. :-) The Altmer are powerfull wizards, right!? How about a magically hidden fleet of thalmor ships on the coast of caecilly. Hidden with some kind of concealment spell, like they did it with "Dol Guldur" in the latest Hobbit movie!? They could have anchoured on the north-western tip of the island and converted the ruins in this place to an hidden outpost, that can only be seen when the player casts a revealing spell at some point of the quest line.
Chimere is the most important character on the island, for sure. He is THE expert, when it comes to daedric princes, the void and so on and a very powerfull wizard too. I was'nt sure if there is any official lore about what happened to him after the island reappeared in Tamriel, so I did'nt write anything special about him. It would be great to work out a solution and a concept for him!
An other point it did'nt mention before is that I'd really like to create the island with a concept of sounds! We have the "resonance crystals" that can be used to travel from Tamriel to the void, which - in my imagination - should be activated through special sounds, shouts or chants. Then there was this line about Chimere and that he was cursed to live forever surrounded by the voices of his friends and family. I'd really like to scatter about 30 ghosts in the void and call them "echos". There could even be a collector quest, where the player can collect an echo out of the void (using a special soul gem) and set it free on an altar in the crypt of Trybador on the Tamriel side... with a fitting reward of course.
You are doing a great work with this
Well not all High Elves are powerful wizards, and the Bretons is practically the generally second most powerful wizards. Wouldnt the Bretons magically overwatch the Thalmor and the island itself considering its history for magical activities etc? They use magic in the most so I do not doubt it, and would the Thalmor there have enough power to hide an entire fleet? I am unsure about that aswell.
Wouldnt it be easier if they had just hidden half a dozen ships that they used to bring equipment and mer for their operations? Unless they wanted to invade some part of High Rock I do not understand why they would need a fleet...