First time I played a version with the 2-week cycle. It didn't change much playtime-wise, it's still a game that can be played through in one afternoon. So it is not too big yet imo.
What did change is that the player has much more freedom on developing the MC due to the 5k payment being moved back a week at which point it is much easier to save up for even if the value has been doubled.
Thus I think the update is a really good one, more content without padding game time.
I obviously failed the first party, managed to get to the end of the second party, though unable to get Kaede to stay, and was maxed for the third party. With the new knowledge and more optimization I'm pretty sure Kaede is doable on the second party, even if it requires multiple reloads.
I did encounter a few cases where I was unable to click something right at the start of the night session, but no clue what might have caused it. Didn't happen often enough to notice something.
As for game ideas, there is the stuff I mentioned last time (visual addition of body fluids when Yuna climaxes, cleaning Yuna with your tongue after ejaculations etc.), for this round I guess a morning-after reaction from Kaede would be good.
Oh and a button or right-click mouse for cancelling stuff. Like getting quickly out of the save-menu, or cancelling some actions like cleaning the semen.