That stake will not be the only unclaimed stake.

There weill be a public auditing where big multi-accers get weedet out which means there will be stakes from those people.
After that, there will be hate and anger and people screaming unfair, scam and what not so maybe some will voluntarily ask for a refund which again would leave stakes unclaimed.

UP still wants to have 3k stakeholders so if we're way below that there may be a second round in which the rules would be tightened severly.

I guess we'll have to wait and see...