He is also called death specialist. Bumrah will continue his bowling streak in the upcoming Asia Cup and ODI World Cup and will be a terror for the other team's batsmen.
He was definitely one of the world's best bowlers for sure, but it's way too early too say that he retained his form currently since he performed well against Ireland which is an associate nation.
He needs to perform well against top countries like Australia, England etc in order to fully retain his form.