New OM 50-200mm Image Quality superior to the 150-400?

A tipster told me that in his opinion the new OM 50-200mm f/2.8 PRO lens that will be announced on September 9/10 has superior image Quality over the great 150–400mm PRO (which sells for over $7000). The only caveat, he said the new lens doens’t take TC :(

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