New Drive Discs have leaked from the 1.4 Beta, including one that fits perfectly for Miyabi!
According to the latest leaks, two new Drive Discs should be released with Version 1.4 of the game:
The first one seems efficient for squads that are using a lot of Quick Assist, as it will give a huge damage boost to the character entering through Quick Assit. This bonus is suppose to "last seconds", which means it could probably last indefinitely as repeated triggers refresh the duration.
The second set seems more focused to specially fit Miyabi! This set will be a huge boost to Miyabi's power, and will definitely be worth farming for if you pull for Miyabi!

Miyabi and Harumasa will both have their Best-in-Slot W-Engines, and here is a first look at the weapons, as well as their powers!
All the S-Rank Agents in Zenless Zone Zero always come with their specific W-Engine, and this is also true for Version 1.4 Agents Miyabi and Harumasa! Here is a first look at the W-Engine's visuals:
In the reddit post you can also see a third weapon that should be a new A-Rank W-Engine!
Additionally, leaks have also revealed the two S-Rank W-Engine's passives! The first one, The Palace of Falling Stars, is for Miyabi, and the second one, The Broken Heart, is for Harumasa:
Harumasa's W-Engine is most likely help him reach his Crit Rate cap, even without counting possible rolls on Drive Discs, allowing you to cap ATK with the Discs, making it a great W-Engine to get if you pull for Harumasa. 
Miyabi's W-Engine will also be extremely powerful for her, as it increases her ice attribute critical hit damage, as well as her ice attribute damage. You can stack two layers, that both last 15 seconds, and the duration of each layer is calculated separately, making it very powerful for the wearer!
 

The brand new Ridu Chronicles Event: The Mystery of Arpeggio Fault will reward you with a specific Bangboo, if you finish it on time! Here is what you need to know!
The Mystery of Arpeggio Fault is a new event that you can play in Zenless Zone Zero.
The event will be running until December 17th, 2024. While this event is one of those part of the Ridu Chronicles (meaning you can still access the event and complete it after the time is over), some rewards are exclusive and time-limited.
One of those limited-time rewards is the new Bangboo Knightboo and his 4 Knightboo Cores. You do not want to miss out on this Bangboo as it is a very efficient Support Bangboo for your Squads.

Knightboo can recover energy and increase squad member's ATK. It also deals Ether damage.
You will not be able to obtain the Bangboo once the event is over, even if it is part of the Ridu Chronicles.
In order to help you go through this Event, we have prepared a complete guide that will help you navigate through the stages, and receive all the limited rewards!
You can head to our dedicated Mystery of Arpeggio Fault Event Guide for all the details about the different stages, as well as the Mysterious Secret Message you can find!

We already knew about Astra Yao possibly being a future playable Agent, whoever latest leaks reveal another character that may be playable in the near future!
Not long ago leaks had revealed that Astra Yao, the famous singer you can see in some places such as  Lumina Square in New Eridu, would be playable in the near future (1.5).
Another character seems to make her appearance at the same time as Astra Yao: 
Her name is Evelyn, and nothing is known about her so far. It is not a character we have seen previously in the game. 
According to the leaks, you will be able to talk to both Yao and Evelyn in the new game Hollow Zero - Lost Land game mode.

Players are trying to guess if Evelyn will be part of the same faction as Yao, if she may be something like her manager. Others think she may be another member of the Criminal Investigation Special Response Team, or part of Soldier 11's Obols Squad! 
We will of course update you as soon as more information is shared about those two future Agents!

Version 1.4 of Zenless Zone Zero will come with a new Hollow Zero mode. Latest leaks have revealed some information about it, here is what you need to know!
New information has been found through leaks about the version 1.4 New Hollow Zero mode: Lost Land.
We already know that this mode will give you access to Agent specific Resonium that will modify their gameplay, however, not much was known about the mode itself.
Latest leaks have revealed more information about the Lost Land mode:
It seems that the Hollow Zero - Lost Land will be similar to Honkai Star Rail's Simulated Universe. For players who are not familiar with Honkai Star Rail, the Simulated Universe is a rogue-like combat challenge where you navigate through different "worlds" with unique challenges, bosses, and where you can collect various blessings that will buff or debuff you during your run.
Hollow Zero - Lost Land seems to follow the same idea: no Tv's, only areas where you will get various buffs or debuffs during your run, and you will have to defeat different bosses or enemies. The final boss seems to be Nineveh again, hinting at a rather hard challenge. Some resonias are not categorized, such as:
Overclocked Boundary Mode: Significantly increases damage (20% Attack and Crit Dmg boost), but ends if hit even once (even with a shield). Blood Reaping Mark: In battle, reduces max health by 30% for N rounds. Stalwart Enemy mark: Monsters recover from the Daze state faster in battle for N rounds. The fact that Nineveh is again the final boss seems to get a negative reaction from most players.The boss is rather annoying with a long invincibility phase and the projectiles that can knock down your characters while you try to kill the adds. We can maybe expect other bosses to be added in the future, that will most likely replace Nineveh in this mode.