PoS only?
Yes it is PoS only.
Mining may be available through multipool after launch if there is demand for it.
If demand is very high from miners there will be a bonus of some sort when mining for it through multipool.
What algo? SHA256? How many coins in total?
Algo will most likely be scrypt but this should not really matter since it is full PoS.
Initial supply will most likely be 1,000,000.