IMO - optimistic scenario is 2,5 bln lost at launch:
There is no way that they can balance costs this year.
12 mln units would generate 1200 mln USD lost, but to manufacture them they need 7200 mln USD( 12 * 600 USD) or even 8400 (12 * 700)
1 game generates about 12 USD income for SONY
1 PS Plus subscription is 49 USD
Including marketing and operating cost lets say that PS4 launch will cost 8000 mln USD (8 bln $$$).
In optimistic scenario they can sell about:
10 mln PS4 units (5000 mln income)
20 mln Games (240 mln income)
4 mln PS Plus (196 mln income)
5436 - 8000 = - 2,5 bln lost.
And this is optimistic







