Good point about being able to play both Clark and Superman. That's right up there with having uber chemistry with the Lois actress.
It'll be interesting to see how long it takes to cast the role. With SR it was 7 or 8 months. Presumably they've already started the search, so a spring announcement might happen. The actor will be under the spotlight. It's a tough role to play and add in a segment of the Cavill fanbase who will be critical of the actor no matter whom they choose or how right he is for the part. Listened to a podcast by a Snyder fan and he thinks Superman Legacy and Brave and Bold won't do well as neither Cavill nor Afleck are the lead actors. My guess is that a very small segment of the Cavill fanbase would like to see Superman Legacy bomb so as to vindicate Cavill.