Andy Serkis has revealed he did not film any scenes with Carrie Fisher for Star Wars: The Last Jedi, basically confirming Supreme Leader Snoke and General Leia Organa will not cross paths in the new film.
Theoretically, Snoke and Leia could meet onscreen in Episode IX, but it currently is unknown if Leia will appear in the sequel trilogy finale.
Some of these suggested a meeting between Snoke and Leia was in the cards, which would have been interesting to see.
Fans would much rather to see Leia confront Kylo or reunite with Luke Skywalker than trade barbs with the Supreme Leader.