I thought the final product was going to be a small reduction down to just over 100k due to the conversion of a number of bleacher seats to premium seats. I could be wrong, as the information has been sporadic and secretive to a degree.
For sure, no one has a tight figure on final capacity (and that is always a bit of guesswork anyway), the broad strokes would be:
Just about anything in the West Side lower bowl will be some form of "premium" - whether it be suites, "loge", club, or just more expensive.
That, obviously, cuts way down on the number of butts that fit into the same amount of footprint (square footage) - by a lot.
Anyone who was in the west lower bowl, if they want to stay anywhere in that general area - will be paying much more $. And a lot of the "club" type stuff will be a lot closer to the field than the South Endzone clubs (take the good with the bad: good for them, bad for the stadium atmosphere and "noise". The club and suite set just isn't conducive to that - and those seats will spend a lot of time holding air for the payday games)
The plan is then to build "up so high you can hear the angels talking" cheap seats. Thats were the folks relocated from the lower west bowl, and the upper west bowl, will be able to relocate (unless they pony up lots more money or are able to move over to the east side.).
It is going to be significantly higher up away from the field than the current configuration.
I suppose they will try to build more "erect" (like the south upper deck), but math and basic trigonometry determine that they will be quite a distance away - in order to account for the far less efficient square footage usage. Best guess: Look at those upper rows in the south endzone - and how far they are from the field. Take that..... and then lift it another 30 feet? 40 feet? 50 feet? higher if they are going to approximate the current seating capacity of 106,000 ish (which is the goal).
In the meantime, of the other 75% of the stadium:
It will - most of it anyway - be 100 years old, at least, before any thoughts of significant update/replacement can even be contemplated.