Theory on what’s going to happen next. Battle of the heart and mind.

gems-from-space:

Theory on tower scene: As Steven’s locked away with Connie, he’s going to mentally connect with a gem who’s also a prisoner, a random gem, his lawyer the blue Zircon, or an unlikely gem ally (Possibly White’s Pearl).

Alternate theory on the tower scene: Steven’s going to find out what White Diamond has been plotting all these eons on Home world and why she hasn’t left her ship lately.
Blue Diamond: White, hasn’t left Home World in eons. 
Yellow Diamond: White doesn’t leave her own head these days.

I think it’s quite possible White Diamond’s been plotting something sinister for ages and needed Pink Diamond out of the way. She’s the polar-opposite to White Diamond in many ways. And Pink’s a natural born leader who could get gems to follow her without her status as a diamond.

If Pink was able to run free and make colonies, even persuade other gems from other colonies to follow her, she could unite three of the Diamond armies against White’s forces. 

Steven can break mind control: Steven’s going to escape the tower – with or without the help of gem allies- and change his clothes. Realizing he has to save his friends from execution/imprisonment Steven’s going to:
1) escape back to the ship with them, only to be stopped by White Diamond.
2) Try to escape to the ship with the gems,only to fight Yellow Diamond who’s forced to stop him by being ordered to shatter his friends. 

Going by the promo flying around, it looks like White’s Pearl might have shown Steven and Connie where the crystal gems are being kept. Or alerted the Diamonds to the gem rescue.
Also, Yellow Diamond looks like she did not want to blast Steven or his friends as her eyes were shut tight.
When she poofs someone, her eyes are usually open and looking down upon the person with a sense of authority. Rarely has Yellow Diamond been associated with shattering a gem apart from idol threats. 

For the scene of Yellow Diamond blasting Blue out of her tower/sauna: I think it’s very possible Blue Diamond could have been manipulated by White Diamond. And Yellow blasted her out through a wall while Steven followed and perhaps makes an attempt to break the mind control by reaching Blue’s mind again.