So where is the CYL banner on this calendar?

I think it’s the second New Heroes block, since the first one has a GHB at around the same time. It doesn’t make sense why they’d have a GHB for CYL.

Forging bonds wasn't on the previous calendar, so it's possible they're hiding it. It might also just be the new heroes starting on Sept 7. I don't think it's normal for new heroes banners to overlap...? Haven't been in the game long enough to be confident about that

If it has to be on the calendar, then I'd say 9/7. There's an extremely login orb bonus for it. It can't be the one on 8/21, because that's a part of the upcoming GHB, and CYL banners don't have GHBs because they're not all from one game. However, there might be a chance CYL is actually right after 9/20, with the 9/7 being an extremely big bait banner. It's unlikely, since it doesn't explain the extremely long login bonus, but there is that small 1% chance.