Major takeaway of that video:
* They name every hardfork differently! Frontier, Homestead, serenity
* Only after Serenity they will work on scalability for 1k to 10k tps
* After that .. they will be up to 1M tps ..
* Ethereum 4.0 brings 'infinity million tps" (WTF?! they either break speed of light or the size of the planet
) and maybe privacy
* Casper (the POS consensus) has not yet been proven
* solving the Economic scalability (bad actors shouldn't make a profit) in casper is still unsolved
* cross shard interoperability still unsolved
* shard validation and fees still unsolved
I think they will run into a lot of issues if they do not realize that doing things in parallel results in a lot of overhead.
The video is probably not worth your time, Dan. But it gives a nice overview of their current plans