I think in 2 years they will be, but I don't see that, I have their number at 153.1278, which is the 191st biggest school, if the previously mentioned co-ops/schools separating happens. If Missouri Valley bumps up to 1A that would make South Hamilton the biggest Class A now their enrollment is 145.18084, and then MMCRU is next after them at 141.3696. So they are a ways above the cutoff, but I will say it looks like their classes will be smaller moving forward.
I am also wondering if Grand View Christian will be in 2A. I have no enrollment number for them, I know that Des Moines Christian's enrollment has really exploded the last couple of years, and honestly Grand View went from 8 man to Class A last time around. I have no number for them at all other than their enrollment the state uses for this school year. The "official" BEDs document has their middle school and elementary but not the high school, and the middle school has classes in the 80s.