First of, welcome!
I’d say don’t just wait for Chiru to start theorizing, but jump into the fray with the Episode 4 Spoiler-Free Discussion Topic. While the amount of replies in that topic particular may seem daunting, we certainly haven’t answered every lingering question yet, so there’s a good chance that you can bring something new to the table. Besides, it’ll probably still take a few months until Chiru comes out. Either way, I’m also looking forward to theorizing with you, and I wish you a nice stay here.