Well, Ancelotti may have spoken about the need for patience, but I would expect Real to try and start fast and put Juve under pressure in the opening 10-15 mins.
It'll be interesting to see how Juve deal with that. They'll need to decide on the balance between just clearing the ball, and inviting another attack, and being brave enough to hold possession under pressure, which clearly also carries risks if done incorrectly.
Real did not press well in the first game, so with a little composure you'd think Juve would have a fair chance of being able to move the ball well enough to beat the press and create some decent situations for the front two to break quickly.
Pogba's return should help Juve retain the ball under pressure.
Beyond that, I see no particular reason for Juve to do anything radically different to the first game. Keep the ball when the opportunity presents itself, press Real when the chance is there, but broadly prioritise maintaining the shape of the team over trying anything terribly bold.