So, the dev i asked said
it is impossible now to hardfork it to x11+pos with bockchain preserved.
If we really want to we can do a new coin, premine the wanted amount and trade the olda ones for the new ones.
I said him we need to discuss it.
I think the new coin solution is bit risky and need to very precise management.
If we decide to stay to scrypt and be a retrocoin ill help as i can too

What do you think?
Maybe we should set a poll to decide this.