For example they said there are 7 more swimmers at the US qualifiers that had qualifying times for one event. Likewise I think for some of the gymnastics as well.

(Note this might be even more true for China and eventually India... Maybe Brazil...)

And if we did... Which we won't ... But if we did, would you do regional (northeast , southeast, mid west, west) or USA-a and USA-b etc ...

Just speculation..... It will never happen