I agree, this is likely to result in changes to IDB regulations and hopefully a higher max than $1350. Meanwhile UA is free to adjust their internal procedures and pay more for voluntary deboarders.
But what else can they do?
1) A fare sale. That will bring back those of us who travel on our own dime most of the time. And make it a real fare sale, systemwide, not just 6am departures to places nobody wants to go.
2) How about a voucher for a free checked bag if you like UA on Facebook?
3) Book a flight on UA's website and get a free upgrade to E+ when available.
4) I'm gonna go big here- Loosen the stranglehold on business and first seats: if you have the upgrade miles and a seat in business or first is available, you can have it when you book your flight. No waiting until departure day. All unbooked business/first seats are available for upgrade. And no bumping back to coach because someone with a higher status wants your seat. Once it's yours it's yours.