Well I don't know when it started or how long it's going to last, but it looks like MKE is getting at least 1 ATR back.

MKE-STL Flt 5651 Depart 4:30pm - Arrive 5:55pm ATR42

Not quite sure how I feel about it. ATRs have more room compared to the ERJ40s, but much more noise and I just remember how COLD and HOT those planes got during the year! Also, I thougth there was a reason AE shipped all theirs to warmer climates with the icing problems they had?

It's probably the only way to provide a slight increase capacity (6 more seats compared to ER40) with AX at the prime 4:30 time.

Should be fun for a while