There are two things that jump out at me with your post.
You mentioned the "intentionally too high" proposal of $700M for the renovations. I see this as away of ensuring it would be rejected. Why? Because IF the CVC were to have agreed to the upgrades, the Rams (Kroenke) would have been locked into the lease thru 2025. While the "cost" of the lease is very appealing, at the $250K figure you posted, it also gives the majority of the "gameday" revenue to the city. Hence the $6.7M reported profit.
Now that the proposal has been rejected, and both parties chose not to honor the arbitrator's recommendation, Kroenke is NOW free to negotiate for a new stadium. That includes STL as a potential (probable) location. Which, IMO, is what he has wanted all along. With that stadium in place, which HE would own and control, he gets the same bottom line results. A shiny new stadium, a revenue stream from the parking, concessions, and even the INCREASED VALUE of the franchise because the STADIUM now becomes part of the net worth.
For all of those who continue to think he is willing to BUILD his stadium in LA, pay what most reasonable projections agree would be approaching a $1B relocation fee, all to "increase the value of the franchise" just seem to be trying real hard to find reasons to make this feasible. By the time its all said and done, his COSTS would be in excess of TWO BILLION DOLLARS in LA.
I will not even try to claim I know any more than anyone else as to what he will eventually do. But I am not one to buy into all the conspiracy theories. All the REAL $$$ signs point to staying in STL to be much more "profitable".