That's a HUGE security issue to take on after a coin starts out ... the basis of the entire blockstack can't be suddenly changed to a new protocol like that ... old transactions will no longer be verifiable, etc.
I'd say it's next to impossible to do.
Well what about other coins that did hard forks, including Bitcoin or is it the fact we're switching the encryption model?
If that's true then I have a problem with this cause ASICS are the future. In a few years the only way to mine will be via ASICS. I think Satoshi knew this and he's a smart anonymous guy.
Seriously, you guys want me to launch a coin that may be obsolete in 2-3 years? You can't merge mine scrypt coins. What if I'm right and Bitcoin goes to to $1,000 next year - you guys don't want to be able to mine this coin and Bitcoin, plus a few others together? That would be so much better than mining a single scrypt coin.