Here's a quick thought:
The 0.09 version was released at the end of December, after which L&P took a month long break and got back to working on the 0.095 update at the beginning of February. This version was then released at the beginning of April, meaning it only took 2 months to be completed and it contained 515 renders for 6 events.
So, with the upcoming Day 12 having a 4, 5, 3 split in terms of events for each part of the day, if L&P can keep the render count to around 500-600 for each part, we could see Day 12 done in around 6 months which would be great. Considering that they all have less events that Day 11 part 2 (8 events), it is entirely possible, but will depend on how deep L&P wants to go with certain events and whether or not they will balloon to 300+ renders.
But right now, the best hope we have is that these events can be kept relatively low, 100 renders each at least, and that we might just get 1 full day in the space of about 6 months which would be a marked improvement.