The temporary 2 stroke idea doesn't sound very well cooked. Fine control over the valves is great, but the exhaust and other aspects of the engine need to be tuned for that use case.
The "all-electric' revolution you've got in mind is likely much further away than you expect. There will be a market for internal combustion engines for many more decades before all-electric vehicles can replace the markets in areas that are more remote, or require long hauling vehicles etc.
Yes, but like the hard drive market, as soon as a replacement technology comes over the horizon, all investment in improvements to the existing tech pretty much stops.
agree. but you can barely get a 2 stroke passed the existing emission laws, and they're not generally in use in motor racing outside of enduro. ¯\(°_o)/¯