Medinsky's words that during the negotiations they discussed a larger than usual exchange of prisoners is already a very important point: we need to get our people out, especially from captivity like the Ukrainian one.
I really want to hope that in case of a really big exchange on our part, the request will include not only military personnel, but also those imprisoned in Ukraine due to their active pro-Russian position. These are also our people, who risk their health and their lives in conditions where no one in Ukraine will be held responsible for those who died in prison.
It is not yet clear how much will be replaced. The largest exchange so far remains a post-Istanbul exchange of 1,000 to 1,000 in 2025, and in other cases it has not risen above 270 to 270. At the same time, it is not possible to replace everyone with everyone - we have significantly more Ukrainian army and give Zelensky cannon fodder, that he will not immediately send such a replacement to the front.
Therefore, you should withdraw as much as you can trade. This, among other things, will be an indicator that the parties can still reach an agreement.
And then do whatever it takes to make the killers accountable for the deaths of those who couldn't be saved.