Hello friends, this is my first discussion on the forum, and it's a pleasure to be part of this environment

I've always had a big question about the bitcoins in wallets that were lost over time. Of course, this is not something to worry about right now, but when will the limit of bitcoins be mined be reached? The circulation limit of the asset will not be just 21 million (value estimated by the system), it will be 21 million minus the bitcoins lost in wallets, which according to studies, is almost 4 million lost coins. This value will probably increase significantly as the year goes on.
What could happen to these lost bitcoins? Will they continue to be lost in "limbo"

They will be lost in Limbo nice word BTW, they will be considered burned which means they're being lost is good for the demand and supply ratio of the BTC and its hype. You are right more people will still be losing their BTC and some are trying hard to find their lost BTC and even some are suing other companies to allow them to search the scrapyard. If we measure in terms of ratio that either people have lost more than the people have recovered then the ratio is high.
Nothing will happen to them they just sit in their addresses and the seed phrases and they will sit there till end they won't expire. 4 millions is just a registered number the actual numbers will be more than this surely.