But, it's been pointed out earlier, the original boxed set KNEW Tyr would fall. So, rather than starting with Tyr free, it simply implemented that change very early on (as in, the first adventure, and the first novel, which were a tie-in).
A free Tyr is still part of the original setting. 4E can't do it because they know they have a limited product run, so they have to make Tyr free.
Saying that the original box "knew" that Tyr would fall is just like saying that "there will surely be another Last War" because that's what the Eberron guide says.
It's a hint, an opportunity, an idea, but it's not a FACT.
In the DS original box Kalak is king of Tyr. Period.
Freedom is an optional (well, I'd like it was) product. Which I, personally, bought more than 10 years after I bought the boxed set, but it'a another matter.
I'm still very displeased that the 4e incarnation of DS incorporates the fall of Tyr in the premises. I understand the "need for a base of operation" gaming matter, but part of what made DS quite unique was, among many other things, the fact that it didn't have a Sigil or a Sharn for the characters to do whatever they wanted.
Next time? Will they release a 4e Ravenloft with a "Free Barovia", without a Dark Lord, that the PCs can usa as a base of operation?
Not all settings should follow the same premises.