I predict Mauer will play zero games in right field. Zero. We have six players that can play the outfield. Last year, Mauer started in right because there was no one else who could. Mauer will not be needed in the outfield; if he's not catching, DHing, or manning first, he'll actually sit.
What I do hope Gardenhire has learned from TK is: don't sit Mauer at home. If he's not going to catch a day-game after a night-game, put him at first or DH. He's the "hometown boy;" the fans are basically the ones paying his salary, he's the one all the kids and girls want to see play, so play him. TK has said he would never sit Kirby at home; he'd wait until they were on the road. (Which might explain why the Twins' home record in the 'Dome is so very, very good.)