Today, the United States Citizenship and Immigration Service (USCIS) announced that it will begin accepting premium processing requests on form I-907 for I-129 petitions for E-3 classification on February 24, 2021. This is the first time that premium processing has been expanded to E-3 petitioners.
As of the writing of this post, the USCIS fee for premium processing is $2500 for qualifying case types, except for H-2B or R ($1500).
A full list of visa classifications and eligibility for premium processing can be found here.