>>12133037
SNES according to the Gigaleak was always going to be 65816 based.
>>12133049
The use of a 65816 was to reuse 6502 based dev tools from the NES, BC was never going to happen as their "attempt" at BC was video mixing which got replaced with more ram (SNES originally only had 8KB of work ram before it got bumped up to 128KB because TVs started to have multiple AV inputs on them, hence there was no need to have AV input support for the SNES).