I doubt it would be Arcia, his only value is his bat and no speed and bad defense. If they bring up a bat it will be someone with some speed but I hope it's Meyer, this bullpen needs help.
Hopefully he can still play some decent 1b and give Mauer a break. Maybe Mauer needs every 5th game off to get back to the way he was hitting when he was catching.
The Twins play 24 of 27 games in September against every divisional opponant with 16 at home and 11 on the road, if they get hot and within striking distance heading into September anything could happen.