I agree.   The Cummings expansion of their Jamestown Plant is most likely to build hydrogen fueled engines; however,  they may also integrate a battery and/or electric motor.

Looking at the Blue Bird Presentation they state 500 electric busses are scheduled to be built in 2023 and 1000 to be built in 2024.  Since the physical years of Electrovaya and Cummings may not match, the 1500 number posted below looks good.

Now, if they will be using the new hi voltage Electrovaya module (the specks shown below) that looks like an Electrovaya battery, then the future of EFLVF is very bright !