Really not making any sense:
Pools are working fine, except for MPH for technical reasons not related to Zcoin and they are working on it.
New wallet after an upgrade must resync, of course .. what is the problem with this ?!
What do you mean "no valid chain data" ?.  My wallet and blockchain are synced and all is fine

Coin is dead : this one is hilarious buddy, How so ? Which coin you have an interest in being alive ? .. Might as well say it instead of this crap.
 
MTP, Znodes, New official pool to name a few are just down the corner, this sounds dead to you ? , Heck that makes it the most ALIVE coin out there .