Sometime I got many problem on C3 from which i go frustrated in that case i just wish that I should start my projects in C2.
Mostly I use C3 so i may go addicted of using C3 but in some cases when i have some important projects that i can't do delay in that case i have to work on C3
this is the reason i want to convert my C3 files to C2 for emergency case.
Doubtful.
C2 Event system uses XML whilst C3 uses json. C3 also incorporates things that aren't even implemented in C2.
Obviously, it would be nice to get a definitive answer from Ashley, but I wouldn't expect it to be positive.