Speculation that I have seen based on the fifty percent saving on retail, and people adding up the cost of the individual models places the cost of the set at £200.
I have to assume the character's will be the same prices as existing charcters, the new CC unit will be the same as the 10 man squads, bikes and eradicaors will be the same price as other 3 man units, then it would work out at £200 for just the space marines, however the prices are based on the full kits, not the push fit kits.
If we use a price for the 3 man agressor kits as a guide per model for 3 man squads and single characters and reavers as a rough price per model for the 10 man squad, its around £160.
While there is some logic to this, GW doesn't seem to apply logic to pricing... so its anyone's guess
