This is one of the major downfalls to Nexon in my opinion. They explain events pretty decently but don't really go into Detail... like EVER.
E.G. I want to buy Black Friday Boxes, But I have no clue if the Chairs/Mounts from them are going to be tradable within the account and I want them to go to my Cadena. I never play my AB so I don't exactly feel like wasting $25 on a Mount or Chair I can't even use, It's the small stuff like this that really annoys me.
For anyone that hasn't seen it already, The Nova Attendance Event (assuming from the Nova Update) is listed in-game on the Events Area as Starting 11/08.
From this, I assume we're receiving the first part of the Update either the 7th - 9th Or the week after. I could be wrong but I don't think Updates land on a Wednesday, Normally it is a Tuesday or Thursday iirc.
With this info we can pretty much confirm when about Cadena will be released, If it works like KMS then Cadena will release on the 2nd update, Assuming the Part One lands on the 7th-9th I can see Cadena releasing between the 28th - 30th. This is assuming we receive the update spread out within a 2week or so Span each Part of the Nova Update similar to how KMS did it. Illium on the other hand, I don't see releasing until around Dec.
Now for the issues I see happening. It was nearly 2 and a half months for the full Nova patch in KMS, If it goes off that same idea for GMS then it will conflict with the holiday season. This could either mean 2 things. Either we're not going to get a Christmas event this year OR were going to have events that were not in the original Nova update being tossed in. I am assuming the latter and if I am right about that then take this as a Warning, We might see an onslaught of events flying at us all at once for the next months. Between Halloween, Thanksgiving, Christmas, and Nova being mixed in with this.
From what I remember we've only seen this happen one other time and many people didn't take part in a lot of events due to time constraints and the extreme amounts of them all happening.
The only other way I can see this not conflicting with Holiday events is if they changed it from 5 Patches into a 3 Patch Update, Starting the 7th-9th and ending right before Christmas. I can see this happening since Thanksgiving isn't usually that big of a deal in MapleStory (event wise). But I highly doubt this will happen..... on a side note, there is a chance we won't be bored for a while.
I'm bad at making designs for chairs but here is mine
Lore - Channeling Your Memories and journeys through Mapleworld creates a Stream of Data that manifests into a chair to celebrat your past and future endeavours, Some say peeking into the stream reveals a snail named Bob.