Not all those games will be sold a the full $10 licensing revenue, as some games will have come down in price, so for easy numbers, let's assume $5, that means sony has taken in half a billion in revenue from software sales. Then I would assume that they're making at least $10 per unit sold, so 3.5m sold this year= $35m revenue. Add onto that the 2million ps+ subs on ps3 (may be more, but that was the figure before the ps4 launched) that's $100m in revenue.
So ps3 game sales revenue + ps+ revenue + PS3 sales profit, I would guesstimate to be $635m. However due to the cost of making some of sony's first party this won't be pure profit, also PS+ will cost them money.
PS+ has made sony half a billion this year :O