1. there's re-interlacer by revision that uses motion encoding, or
2. you could try my program I made in AE. It uses timewarp's pixel motion shutter blur to create a difference matte driving a griddler effect so that it only affects heavy motion.
3. There's probably a practical approach too such as doubling the frames with optical flow then placing the frames back into original fps comp forcing the frames to turn into fields then rendering out fields and then re-importing back into AE with fields off.