Zunino will still have one option left after this season. He was added to the 40-man roster when he was called up in 2013, and stayed in MLB (or on the MLB DL) until August 2015. So 2015 was his first option year, and 2016 his second. He also may not be arbitration eligible this winter, depending on if and when he is recalled yet in 2016. He currently sits at 2 years and 90 days service time. The "super 2" threshold is usually around 2 years, 120-140 days. Still, with his record, his first year arb salary won't be that high (what do you think Arcia will get this winter?). And as a "super 2" player, he will still offer 4 more years of team control, same as if he wasn't arb eligible. I can't dispute your last point about him never hitting in the majors, though.