If the lost Bitcoins were for instance recovered will the price of Bitcoin drop because in theory it would affect the amount of Bitcoin in circulation which will lower it's price . I saw in those threads that lost Bitcoins are considered a donation to the Bitcoin network. so if my theory is correct then we should be happy those Bitcoins were lost.
Whether there will be lost bitcoins or not that will be up for sale and it's a huge volume. There will be for sure an effect to the price of Bitcoin. Not just that, there will be more force if the media is going to publish these sell offs as it's gonna put pressure to many retail holders.
And from there, the news that's disseminated will impact to everyone that's also gonna feel bad about it.
But let's take the reality of these lost bitcoins, they won't be called lost if they're not lost entirely. It's good that there's this take that these lost bitcoins are lost forever and instead of a drop that it will contribute, the value from each of those will be retained.