I wouldn't count on that. I think the plan is to reduce your cash, forcing you to substitute it whenever possible with kobans, which would help them sell more kobans.

I play this game since August, and in that time I have seen a lot of new stuff which all seem to have one goal, make things more difficult and expensive for the players. 5 star girls with ludricous costs and little gain of income, the amount of exp a girl needs has been elevated twice, making sure you have to buy every book available to keep your girls at higher levels. They added an effect to make sure people want to level up their girls, giving you some extra ego for that.

The new troll system were you have to level them up before they pay off is a mixed bag, if they are leveled enough you can get more money than before.

Really not happy with the development of this game.