1-Raw video 1270x720 blown up to 1920x1080, better or similar to native one?
2-SDXC cards nominal 90MB/sec enough? or those for 4K?
3-If 1920x1080 becomes a reality for most EOS cameras, what would be the chance to blow it up to 4K?
it all seems possible nowadays, at least it has a theoretical more better chance than converting sd to hd..