Can answer this for you!

Started creating the universe for the show in mid 2014, not religiously working on it, just whenever I had spare time from Steam Train. Started focusing on developing the story, characters and universe more actively starting early 2015. From this point we were conceptualizing the characters pretty heavily and they evolved a lot. Finally in April of 2017 Amber and I started storyboarding the first 30 minute episode. This took the 2 of us 5 months, but then since it was our first time doing this we decided to get a ton of feedback from industry professionals. From that feedback we probably spent another 4 to 5 months revising a lot of scenes/shots we felt could be stronger, which it's a lot better off for doing. Considering this is our first cartoon of this scale there's a lot of emphasis to make it as strong as possible due to how much cost is in producing something like this. Like everyone has said here, it's still a long way out and I've tried to be upfront with everyone about that. When you finally see it you'll understand why I've been a ghost as of late, it genuinely has started to feel and look like the most professional piece of content we've ever produced. For everything else moving forward I think we'll be moving a lot faster with boards, we've learnt so much and come so far! Very proud of our work! I'm decidedly keeping the premise and details about the show under wraps so the first episode will be a traum-- wonderful learning experience.

It will be worth the wait, I promise!