Maybe they won't but the ECDSA will still be alive on it..... ECDSA can run forever if i'm correct so Sony won't have to keep a close eye on the PS3.... they still will be updating it though because usually they split PS up into groups (PS3 group, PSVita group, PSP group, etc). I don't think there will a necessarily a CFW or a way of downgrading, but there might be A LOT of exploits coming out