And I mean really, really lost.
A lot of people can't remember their passwords after 4 minutes since they set it up.
But apart this, there's several ways bitcoins can get lost, like in example if you have a wallet on a USB key and this breaks and you have no cold backup.
This will inevitably bring, in the future, to less than those 21 million cap.
And they WILL keep going down.
Is there a plan to reintegrate them?
Define "really lost".
Prove they are "really lost" coins.
If you can do that, then we can talk about regenerating them.
HINT: No one can prove coins are lost or stolen. All they can do is
claim they are lost or stolen.
This is the real world where even the best people lie, cheat and steal.
Forget about the alleged "lost" coins. Worst case scenario is they make the rest of the coins worth more.