First off, I'd like to say 3/4 that list are things that were invented previously (like, 2 generations ago on the Dreamcast or earlier). Things like 'Online gaming' and 'DLC' were just made more popular this gen.
Second of all, I'd actually venture to say the biggest 'innovation' in gaming this gen is not even linked to any gameplay mechanic. Its actually the inclusion of entire new markets to gaming. What many have deemed the 'casual' and 'mini-game' markets. But whatever you want to call it, Nintendo has opened up a whole new world of people to gaming. Which Microsoft, Sony and a group of other third parties are trying to now jump on. That's the real 'innovation' this generation. And its going to spill into next gen and beyond.
Six upcoming games you should look into:
Essay Pro