nice work, unfortunately it is doomed to DOA

. reason : Waaaay to slow retarget. initial dump , huge hash power swich + auto swiching pools + hashpower renting = infinite years waiting for retarget. why do You try to reinvent the wheel? simply use every-block,exponentialy-weighted moving-average and it will work. or at least something simmiliar used in tens of altcoins. that can work below 1% of global sha256 hashpower .what is here proposed will die very quickly, instantenously to be precise.
You commented without reading the whitepaper though. The retarget is addressed, so this is not an issue. Second, there are already futures markets trading this coin and so it will have value. As it has value, it will have hashrate. Also, replay protection has been added. It will definitely not "die instantaneously".
But it remains an alt-coin and many alt-coins are listed on exchanges as well. Any hashrate taken away from Bitcoin will damage it and the whole ecosystem. If everyone just carries on with the chain as is the blocksize issue will be addressed through the normal course of business. Why risk it all?