When is S2 posta debut?

We can only especulate. Season 1 wrapped shootin on March and came out in July. So since Season 2 is expected to finish filming on Apri, I think it would be a good guess to assume that it maybe comes out in August.

They often try to release seasons exactly one year apart, but it's not a hard and fast rule. Over the summer at some point. Possibly July, possibly August, until they get more specific (which they might not do until the last minute) that's about all we can say for sure.

Probably sometime during the summer.

I thought I read July 14th someplace, but I can't find where.

Mid-July is a good bet, anyway.

All I heard is sometime in late 2017

This site says July 1st.

....Zing!