Our next priority is releasing the next patch with the new networking code. After that it's shipping the Alpha.
We're pretty happy with where the networking code is at though we still need to finish server-side planetary collision detection and may need to put a bit more time into polishing up the latency compensation at some point in the future.
Given that the game is under active development this kind of depends on which day of the week you're asking. Our server has been up without crashing since January of this year so it's doing pretty good at the moment.
Yes it can use containers however we aren't currently using containers.
Our plan is to release a modding SDK for I:B followed by a fully fledged public SDK sometime after I:B is shipped to retail.
It's probably important but it remains to be seen if they even bother to list us :p.
Thank you so much for the kind words, it really means a lot to us, we're going to get this game finished and hopefully you all enjoy it!