That would be a damn good deal and I'm sure Zelenskyi would be more than happy to sign the papers if there was no doubt of the outcome.
But as of now I'm pretty sure that announcement is mostly just global politics with a hint of fools hope of it actually going trough. He's just stating loud and clear to the world that if it's his (forcefully) prolonged position which is the main issue on the war then he'll happily stand down, but on the terms which are acceptable to the Ukraine.
Heck, after all he's been doing, I wouldn't be surprised if he agreed to go into trial in russia (and sacrifice himself) if it meant lasting peace for Ukraine. It obviously doesn't come to that, it's not really about who's sitting on president office, but in theory I wouldn't be surprised.