Well, one piece 923 today is quite amazing when Luffy manages to land many hit to Kaido. For me it is still too soon for Luffy to meet the enemy boss. Unlike when Luffy sneaked into the Big Mom Territory, he faced many syrong underlings before see big mom eyes to eyes. But here, in Wano we havent see much strong underling of Kaido got into fight with Luffy or Luffy Crew members.
At the end of Chapter 923, can can see Kaido almost unaffected by the Luffy attack, even in his strongest mode (Level 4). And with one counter attack, Luffy is done for (even returned to his original form with badly beaten.
Now, what will happened to Luffy in Chapter 924? If before this Kapten Kid is beaten badly and even locked into a cell now Luffy seem will be in the same condition, unless he is save by the Trafagal Law's power.
For Straw Hat crew members, I really believed nothing will happened to them since they noticed Kaido will attack them. But Luffy is rather in worse condition. Who will save him now?
One thing is Otama is seen like badly beaten too by Kaido. Whether she is still alive or not we still don't know since Otama is just a child. Maybe Kaido kill her instantly. However, I still believe Otama still alive.
Here my guess in Chapter 924 One Piece:
1- Trafagal Laws will try help Luffy using his power (he can easily going to other location by teleporting.
2-We can see Straw Hat and other members of heart Pirate is save (Maybe using power of some of them to overcome the attack from Kaido).
3-Shuternmaru will observe the situation.
4-Luffy maybe saved by Inurashi (mink Dog) 
