Great !
As I know ,
1.New Particle X with new features (X11 and Proof-of-Stake)
2.Particle Coin will be swaped for Particle X with a ratio
3.All future plans should be based on Particle X

For the swap ratio
"I am leaning towards 250M total coins.  The coins will be split.  175M of Particle X coins will be mined and reserved for a coin swap for PRT (just like Saturncoin did, with an Exodus address that we can track and a script to automatically do the swap), at a 4:1 ratio.  The remainder will be PoW mined on the pool.    We could also consider doing half and half, with 350M total coins."

250M total coins.  The coins will be split.  175M of Particle X coins will be mined and reserved for a coin swap for PRT (just like Saturncoin did, with an Exodus address that we can track and a script to automatically do the swap), at a 4:1 ratio.  The remainder will be PoW mined on the pool.   That's OK , It's fair .
But "half and half, with 350M total coins" is not fair .

It's a big change , so please do it safe and secured .