Brother, I meant it ( 2 stroke bikes )won't come again in the way we know it now. Of course research is going on and if they can perfect it then we might see 2 stroke in FI guise.
4 stroke also pollutes air. But it does not pollute as much as a 2 stroke engine does.
BTW I own 2 stroke as well as 4 stroke.. so I am not biased towards either.
Ride hard.. ride safe.