Nobody else here cares but you. Sounds like your problem.
AAANNYYWAYYY...moving on
& you because you started this topic without using search. Heck theres even another one in the Spoilers section AGAIN... It's like every three days some moron restarts this debate without using their brain & thinking "Hey i should use search to check if someones already brought it up & debate my thoughts in that thread", Instead we have a ton of this repetetive crap that goes nowhere except in circles with [censored] thats already been said hundreds of times.
How is it virtually proven? I think it's open ended enough that they could make a DLC out of it. Depending on your choice.
Except, they won't.
But they could.
They won't, this is Beth we're talking about here, they'd rather work on something new than waste time with something old. Also it is virtually proven because of all the info that's been gathered as to the consequence of your choices, in this case, turning Saadia in. The big spoiler is that Thalmor Agents come after you spouting stuff about their agent. Happened to me twice, & the second time, the only quest i'd done that had any mention of the Thalmor was this one. Coincidence? No.