It will be interesting to see if Eberron 4E has a similar welcome to what we saw when FR was released. (ie very strongly mixed)
I'd be quite surprised if it's that bad. The controversy over 4e FR was due to all the changes being made to a setting that had been known and loved and kept (fairly) consistent for nearly 20 years; Eberron has only had 5 years and one game edition's worth of material and development.
In terms of the whole divorce idea, I kind of pictured it like this: Dad looked around at the house the family was living in and saw a lot of problems, cracks in the walls, uneven floors, etc. He got a great new job offer overseas and wanted to take the whole family with him. Mom was mostly willing, but then Dad said that once they got there, he was going to drive the family everywhere himself, even though Mom had done it for years now, and was probably a better driver than Dad. Without driving, Mom wasn't going to have a lot to keep herself busy.
Some of the kids were big time baseball fans, and just loved the sport, but Dad said that where the family was moving, baseball just wasn't played, and he wasn't going to change that, he thought it caused too many problems, and not every one of their kids was a good baseball player. Some of the kids cheered the prospect of a move since they hated baseball and thought it was stupid and boring, and some of the kids thought baseball was a fundamental part of life. Mom was a big fan of the game, though, and loved to cheer her kids on if they wanted to play. Sure, people played a somewhat similar game (cricket, to keep the analogy going?) over where Dad wanted to move to, but it just wasn't the same sport no matter what sort of label they tried to put on it.
Between the unexpected taking away of a major part of her day and the kids who were going to be unhappy over in the new country with their new choice of sports, Mom was just kind of stuck. She'd always been living in Dad's house, comfortably, but none of the equity was actually in her name, regardless of how well she decorated the house or added on nice little pieces here and there.
The thing of it was, though, almost all of their current house was going to be left standing after they left, for anyone to come and live in. Sure, it needed work, there were flaws in the structure, absolutely, but to Mom's eyes, it wasn't an unlivable house, it was still home, even if it did need a little maintenance. The kids who wanted to play baseball could still play baseball, Mom could still drive the kids where she wanted to, and whatever happened to the house this time would be Mom's and Mom's alone; Dad couldn't claim any of the credit for this one.
The divorce was ugly, no two ways about it. A lot of the kids chose sides and heaped hatred and abuse on their siblings that chose the other parent, while others sat and tried to convince themselves that "they'll get back together, they just have to see that they really need each other." But a year later, there's no signs of reconciliation. Mom's getting ready for the final version of repairs she'd drawn up for the old house, (the flaws in the place still obvious to any who looks, but the kids who stayed just don't really care,) still driving a bunch of kids around to baseball practice, and living her life on her terms, for the first time in her life. Dad's overseas, doing well at his new job, putting out cool stuff on the internet, and watching over the majority of their kids, some of them happily playing cricket instead of old, boring baseball. The new house looks pretty, some might say a bit bland or artificial (Dad's never been that good of a decorator, that's been Mom's thing), but most of the kids are too busy enjoying all the new rooms to care, if they even do. Then there are those few kids that are still waiting for Mom to come to her senses, see just how much better Dad's new house is than their old one, and to come begging for Dad to take her back, whether the house is hers or not.
