CEIAnigger dropped info. Take it with a grain of salt since this pinoy loves to get shit wrong but it's the best summary so far.
>Outfit Banner Rules
The probability of obtaining Klukai's Outfit - [Cerulean Breaker] per pull is: 1.18%
The probability of obtaining rare items per pull is: 13.30%
>When obtaining rare items, one of the following will be given:
Andoris' Outfit - Midnight Whisper
Klukai's accessory parts
Andoris' accessory parts
Klukai's Weapon Skin and its attachments
Curios
>Detailed rates for rare items:
Andoris' Outfit: 1.21%
Klukai's outfit accessories: 3.03% total, each part equal
Andoris' outfit accessories: 3.03% total, each part equal
Weapon skins + attachment skins: 3.63% (Weapon: 1.40%, Accessories: 2.23%)
Curios: 2.39%, each equal
>Normal Item Drop Rate Overview
If no limited or rare item is obtained, you will get a normal item instead.
Normal item drop rate: 85.52%
>Drop List:
Nostalgic Keepsakes (Old Mementos, Confidential Intel, “Candy” Coupons, Festival Playlist, Silver Lion Statue, etc.)
20 types of Echo Artifacts (Echo: Napier’s Rest, Echo: Nadine’s Rest, etc.)
Tender Gift Box
-Trajectory Tokens
>Detailed rates for normal items:
Nostalgic Keepsakes: 23.95%, incl. 2× and 3× versions each at 11.97%
Echo Artifacts: 8.55%, each equal
Tender Gift Box: 23.35%, incl. x5 at 13.51%, x4 at 9.83%
Trajectory Tokens: 29.68%, incl. ×60: 4.53%, ×50: 8.98%, ×40: 8.98%, ×30: 7.18%
>Pity
Every 10 pulls guarantees 1 rare or limited item.
If 50 consecutive pulls do not yield Klukai's Outfit - [Cerulean Breaker], the probability will be increased. Every 100 pulls will guarantee the outfit. >The counter reset upon obtaining.
>Each pull consumes 1 [Outfit Permit]. Can be acquired via packs or other means. Unused permits remain available for future outfit events.
>Duplicates
Duplicate [Outfit - Cerulean Breaker]: converted into 1250 Trajectory Tokens
Duplicate [Outfit - Midnight Whisper]: converted into 240 Trajectory Tokens
Duplicate outfit accessories converted into 120 Trajectory Tokens each
Duplicate weapon skin converted into 180 Trajectory Tokens
Duplicate attachment skins converted into 95 Trajectory Tokens each
Unused Trajectory Tokens will be converted into [Universal Trajectory Tokens] after the banner ends, they can be used in future events.[Expand Post]
>Exchange Shop:
[Trajectory Tokens] can be used to redeem Klukai's outfit, Andoris' outfit, event items, outfits, outfit accessories, skins, ID cards, etc.
Owned items cannot be redeemed again. When the banner ends, items will be moved to the Legacy Exchange Store.