Will InControl eventually handle the bandwidth reporting for the BR1 HD2 etc?

Considering this is currently kept in volatile ram on the unit (so all data is lost if there is a power cycle) - this would make a permanent record that could then be used to analyse historical usage patterns too.

Also more advanced reports could be run thanks to web server engines as opposed to firmware limited on device reports.

Yes, InControl will eventually handle all the bandwidth reporting for the entire MAX family.