Ostwind
The changes seem to focus on turning Ostwind into a AI killing machine, while the reduction in scatter will make it even worse vs vehicles. Imo the unit should become better investment offering more. Compared to the Centaur it has allot less armor and bigger target size.
Suggestions:
Tone down the AI of the unit but increase its performance vs light tanks.
Increase armor reduce size target to perform better vs light tanks
Increase the damage vs light tanks. One could either give the Ostwind 2 fire modes AI and AP with AP or one could turn the auto cannon into a accuracy based weapon similar to Centaur.
Panzergrenadiers
Imo semi elite unit should not be available in their full potential this early. They should follow the power level of mainline infatry and scale with them.
Suggestions:
PG become cheaper close to 280-300 and come with worse weapons a combination of k98/g43/ST44 getting the rest of their weapon as an upgrade.
Since there is real danger of shreck blob one could removed the shcrek upgrade from the PG and create a separate unit (AT PGs) that can upgrade with shcrek.
I disagree on both points. Wehrmacht desperately needs an AI tank to deal with things like Section or Guard blobs. Pz4 just doesn't cut it and rushing T4 usually is a handicap unless you control both fuel points for a sustained period of time.
Also disagree with the PzGrens. The problem at present is that they don't scale due to their arrival time. This patch, as far as I saw and tested myself, seems to rectify that issue.