There's no telling until the game is in the wild, but there's an expectation given that
Nintendo is charging for online multiplayer for the first time that we'll see an improvement to Smash's online options. After Nintendo confirmed that the game would include a number of online features, the full suite of options was detailed during the November Nintendo Direct.
The game is no longer splitting online players between competitive and non-competitive matchmaking. Instead, three factors are used to determine who you play against.
Preferred rules, which you set prior to your matches, will help pair you with other players who want to play stocked or time battles, or want to play with or without items. GSP is your power ranking, which will be used to determine your skill level relative to other Smash players to ensure you're playing competitive matches. And above all, the matchmaking system will prioritize other players within your region to ensure stability.
You can also engage in private matches with friends, along with the standard suite of spectating the recording options fighting game fans will be familiar with.
And in case you forgot it existed, the Nintendo Switch's mobile app will be your means for communicating with players over voice, since Smash Bros. Ultimate lacks native voice support. Nintendo is also launching a separate app,
Smash World, for players to share gameplay footage between each other