I remember you saying some time back that you were considering staggering future updates into more frequent, smaller releases and I think for your own sake that's a great idea.
I prefer long waits with big updates because I get to forget what I've done and it feels less like a chore going through things I've already done. But I personally find if I'm creating something it's nice to have frequent checkpoints where I can think "Yeah this is working". I don't want to make assumptions about you but I think that would be a healthier approach for you.
Also, 350 images to 1300? You almost quadrupled the game size. That's an insane undertaking, and hats off to you for putting so much work in but that seems like an easy way to burn yourself out.
The update will come out when it comes out, just look after yourself 👍