I watched the video because this did sound on first reading something rather special. Removing the need for regeneration? It would be amazing if it were true. But I can only see they now have the flexibility over the transmission format to reduce the need for regeneration (at the expense of reduced bandwidth), not remove it entirely. Use of DSP in signal regeneration is nothing new, just they're now using a faster one (based on a smaller feature size 32nm CMOS process).