Its taking so long because of the pool renders. He mentioned that those pool renders are about 600. To put in perspective, every version before 0.085 had about 300-350 renders. 0.085 in total had about 600-700 renders (iirc). Now the same amount of renders have gone towards three pool scenes out of which only one is available per playthrough. One is the Dylan/Sophia/Amber/Sam when Aiden's tasks are refused ad Dylan goes to boarding. The other two are the bikini fashion show one with Sophia/Dylan and Sophia/Dylan/Sam. And after this comes the tanning event, the Bennett event and the Ellie event. No wonder its taking so long.
L&P needs to recognize now that he needs help. With the events now spreading and dividing into different branches, it would only get longer from here on out. Worst case scenario we would be looking at a half day update every 6 months.