ColecoVision was next in line, but it's not as if someone else wouldn't have thought of arcade ports with high resolution graphics and better system specs.
If it were truly revolutionary, it would have ushered in more genres and gameplay styles. For example, the Intellivision had a bunch of strategic games, slower and deeper than the average arcade port. ColecoVision got a few of those, but it's not known for that.
While I agree with the general premise, I think if we look towards the end of the ColecoVision's commercial lifespan, we can start to see envelopes being pushed. Besides all the educational stuff, there were hard-to-classify games like Campaign '84, War Room, It's Only Rock 'n' Roll, etc., not to mention unreleased games like RPG Lord of the Dungeon, which would have been the first console game with a battery backup. I think had circumstances been different and the ColecoVision survived through the Crash - for instance, Coleco not going down the Adam rabbit hole or going all-in on the Cabbage Patch thing - we could have gotten some really interesting stuff in the 85 - 86 timeframes. Of course, that premise would also have to assume that many of the third parties developing these games wouldn't have also gone down in flames, etc.