That's what he said three weeks ago, during an interview for public Hungarian radio Kossuth:
"I don’t want to take on the role of soothsayer, especially not that of a bearer of bad news, but the time isn’t far off when the Hungarian public will hear that there are proposals tabled for peacekeeping forces or some kind of military troops who will be needed in Ukraine. This will be the logical next step in the drift into war."
Judging by the participation in Anakonda-16 military exercise from 2016, Poland, US and UK will be the core of such mission. Participation of most of the NATO seems likely though.
Only Hungary and maybe Croatia are unlikely to participate.
I think I's be surprised if Biden allowed us to go to Ukraine on any kind of peacekeeping mission.