I know that this is a big ask, but when slowing down video with retiming, I would really enjoy some sort of option for optical flow. For those who are not sure what exactly that is: optical flow let’s you generate more frames based of surrounding frames by analyzing pixel movement over frames. It is much more effective and detailed than just averaging frames together via frame blending. Both FCPX and Premiere have this feature in some basic form. In Foundry Nuke you can also set vector detail but that level of control is beyond what I would want. Simple On/Off for optical flow would be a win for me.