It's unclear yet how the Switch successor will approach backward compatibility, but Nintendo is promising details at a later date on this feature.

Nintendo hasn’t announced its Switch successor yet, but we do know one thing for sure: it will be able to play current Switch games and have carryover for your Nintendo Switch Online services and account. The news was announced during Nintendo’s midyear policy briefing, with further information promised “at a later date.”

The next Nintendo console, dubbed "Switch 2" will feature backwards compatibility with Switch games confirms Nintendo's president.