The Spain international has been strongly linked with a move to the English title holders in recent weeks ever since he reportedly told the La Liga outfit that he intends to leave ahead of the 2019-20 season.
Reports have claimed that City will trigger the player's €70m (£63m/$80m) release clause, in a move that would make him the club's record signing, as they look to secure their third Premier League title in a row to make history.
Guardiola however refused to be drawn on whether he would be heading to the Etihad Stadium when he was asked at a presentation in Barcelona, though he did imply that a move certainly remained a possibility.
Speaking to reporters, the Spaniard stated: "I've no idea [if Rodri is going to City], you'll see. He's a great player."
One player however who will definitely not be making the move to Manchester is Real Madrid's Marco Asensio, with Guardiola adamant that a move would not be on the cards for the 23-year-old.
"There is no chance that City will sign him," he added.
The club today did however confirm that veteran David Silva would leave the club at the end of the upcoming campaign after bringing up a decade with the Citizens.
The veteran Blues favourite added that he would not be leaving for an English rival, stating that he could not see himself playing against his old club following his long association.