There is no proper way to find out how they are approving TPS. Most of the TPS applicants got their EAD, but TPS is still holding. One of my friends received his EAD last month and he had biometric on Aug 14, but TPS still holding, but another friend who got Biometric on Sept 2nd got his tps approved, they already sent his EAD.

The only thing is just to wait.

Good Luck guys.