I'm not going to say it's imposible because nothing is BUT there is a thing people need to understand. LEGO Skywalker sold 5 million copies so now LEGO is expecting similar numbers and so is the kind of money they ask for the license. LEGO Horizon is on the Switch because it won't sell 5 million just with the ps5 and pc.
Now the question is "Then why pay for something they need help to make money from it", because of MORE money LOL. If that game works then they can sell real life LEGO sets and other Horizon merchandise and one of the strat point presented by Sony in their corporation meting about PS was that they want to expand the playerbase with merchandise. Honestly there is a bigger chance of someone who only uses the switch buying a ps5 after playing the game than Sony actually putting their games on Switch because console sales is still one of the biggest parts of Sony economy, is the exact same discussion with pc, people say "software is king", that is true when people buy software in your console LOL because your software is limited, the industry software is not, so they can't and won't lose console sales putting all their games in another console.
Either way I hope switch bros buy the game because i want a Thunderjaw LEGO set.