More whistling past the graveyard. The fact is that the incursion force represented the very ast of the well-trained, well-equipped and well trained forces that Ukraine has (and when I say "well" I mean "NATO").
And those troops are the ones "encircled".
They are now terrorists in Russia's eyes. Putin has declared the fight in Kursk to be a Counter Terrorism Operation.
Under a CTO, there is no quarter given. Anyone not killed outright on the battlefield is subject to summary execution. None of those guys will be eligible for a POW exchange. They will be imprisoned if they are not executed.