What they will likely do is let the top E. Africans get away with the drug use. They'll state full investigations reveal no wrong doing, blah blah. I hope I'm wrong.
The fact is that Rosa, Hermens and others were given free reign to dope athletes for almost three decades. They killed distance running in Europe for the most part, which was the intent in the first place. Similar to the unsurprising revelations about US officials allowing (black) sprinters to get away with doping for decades. Basically whenever a US sprinter of color gets nabbed it's because someone from another camp ran to the press and let info leak.
Jama Aden was arrested a little over a week ago. Between he, Rosa, Hermens etc. finally coming under scrutiny, it's obvious the numbers of talented world beaters from E. Africa were a bit inflated, to say the least. I would hope the sport can be saved, but I doubt it. For example, while blacks have a higher percentage of 'sprinter types' in their population, what we see these days is artificial, due to rampant drug use that is protected behind the scenes. The politics are much bigger than the sport of track and field. Look at the UFC. It was obvious that for years the organization looked the other way when it came to drug use by their melanin enriched fighters from Brazil, the US, anywhere really.
