Asked whether he thought Vettel's replacement would be the Italian or Spanish-sounding name, in reference to Ricciardo or Sainz, Verstappen replied: "I think it's not going to be the Italian-sounding name.it's just a guess, we'll have to wait and see".
Sainz made his F1 debut in 2015 at Toro Rosso before linking up with Renault in 2017.
While Vettel moving to Mercedes is a dim prospect, unless Hamilton should succumb to an enticing, offer from Ferrari, the four-time world champion's sudden availability could provide the German team with leverage during its contract talks with the Briton and Bottas.
Verstappen also hinted that Sainz was in line to take one of the most coveted seats in the sport.
While Vettel is now available, the German's comments when leaving Ferrari suggested he is considering retirement, and it is believed McLaren is prioritizing Ricciardo to replace Sainz, signing a proven race victor who would also help maintain a similar atmosphere to the one the team built up over 2019.
While Sainz and Ricciardo look to have secured their F1 futures, rumours have continued to swirl over Vettel's possible retirement after his Ferrari deal ends at the end of this year.
Wolff is therefore aware that he and Mercedes can't simply ignore the news.
"With a view to the future, we are primarily committed to loyalty to our current Mercedes drivers, but of course we can not ignore this development".
Both Lewis Hamilton and Valtteri Bottas have yet to agree terms with Mercedes for 2021 and beyond, and both drivers could theoretically be of interest to Ferrari.
Austrlaian Daniel Ricciardo is set to join McLaren to replace Carlos Sainz, who is on pole position to be Charles Leclerc's teammate at Ferrari next year, according to Formula One sources.
"Sebastian is a great driver, a great personality and an enrichment for every Formula 1 team", Wolff told German media outlet DPA. However, a year ago Sainz and Norris helped secure a comfortable fourth place in the constructors' championship ahead of Renault.