Eat the Dreamer calls Akatosh/Lorkhan "same-twin" connected by an "aurbrilical cord." Same thing as the coin anology - they are separate things (the coin's two sides), but you can't tell where one starts and the other begins. This is a reference not only to their being both aspects of a single divinity but also of their overlapping and changing roles. One is rebel and the other king, and they exchange roles. Thats all Shivering Isles is - a reflection of the enatiomorphic relationship on the scale of the Daedra.
In that sense, yes, there is a 'connection' between the events of SI and those of Tamriel. In the specifics, no, its no the same. I'm not convinced the Graymarch has stopped (though the events of Skyrim would indicate that they have), but even if it is still a cycle that has happened dozens of times before. The events of the empire were singular and unique, not part of a cycle. They were Dagon's domain, a bloody revolution driven by his followers, out of which no new Emperor emerged.
However, the events of both Shivering Isles and Oblivion herald the end of the Kalpa and the return of Lorkhan, as did all games before them. Shivering Isles ended the enantiomorphic cycle in the isles, and Oblivion broke the covenant between Akatosh/Shezzar and man, as well as taking out a Tower. Morrowind returned Lorkhan's heart to him, and took out a Tower. Daggerfall stressed Akatosh's reserve and got rid of the false god Numidium, which was also a Tower. Its all building up for one hell of a godly end-of-the-world struggle in Skyrim.
I hope that covers it. I'm not entirely sure what you're trying to say, tbh.
My head is all over the place at the moment. I read something,think i understand it,then read something else,then get confused again. Thanks for the links by the way.
Some things i have read are just way over my head,i cannot crasp them. Anyway...i'm looking for a response,be it good,bad or whatever. From there,that may lead me to other info,or a better understanding of info that confuses me.Thus making me re-read it in the hopes of understanding it. See it as me clawing for a reaction,from people who understand better than me,but somehow describe it in a simple manner ( the manner i'm comfortable with ). I'll read something,then i won't understand it.That then makes me frustrated/want to give up,which in turn annoys me. Then someone will take that frustration i have,and turn it into a push/motivation.In a nutshell,i want to come to my own conclusions about the info i read.But in order to that ( sometimes ), i need a push/motivation to do say......is that lazy on my part?...thats for others to decide. I'm new to this and need time to take it all in...i think half of my problem is patience.I hope that makes sense.
Ok....now i'm going to throw something else out there. It's very basic ( i will look into it more ),but for now i'll mention it,and see what response i get. Now if i may ,going back to the same coin,different sides thing.Akatosh/lorkhan...Sheo/jyggy. Like you say: "You can't tell where one starts and one ends/begins". At the moment the thing that stands out to me is the cycle.
A continous cycle that keeps churning away/never ending/or ending and beginning without stopping. Ok...this is the basic idea/thought i have at the moment without great detail/or deeper thought yet.
Ok..."The coin" = as one."Two sides" = Alter ego's....Akatosh = one side,Lorkhan = the other. Now when you say "where does one end and the other begin etc"...this is what i thought.
What if that coin needs a spinner/or someone to flip it? This made me think of Lord Dagon. So now you have two sides of the coin and someone to flip the coin...thus changing sides.
Cycle/or continous cycle: Say it starts with akatosh....that continues untill it needs to change...That change starts with a flip of the coin = Dagon ( he changes )...Then that cycle ends and begins as lorkhan. Thus this repeats over and over. So akatosh,lorkhan and dagon are all the same ( cycle ) but different parts of the cycle. well I hope what i've put here makes sense.
Like i said it's basic. Anyway take it as you will.