LiFePO4 can typically give >1500 cycles. There is some way to go if sodium is at >400 cycles. Temperature dynamics is not mentioned. Li-ion gets hot during discharge, requiring cooling systems for fast charge/discharge cycles. If Sodium does not suffer from overheating issues then this is an advantage over Li-ion. The manufacturing process will also be key. It needs to be as cheap as Li-ion. With Tesla and BYD scaling up Li-ion production, Li-ion will dominate in the near future, 2-3 years.