There is no consideration for a B-21 at this stage. It's not on the CONOPS. Is the B-21 even exportable?
What is on the table 2020-2040 is
Additional Air Combat Capability ($4.5 - $6.7b)... decision 2025, probably another squadron of F-35, taking it to the planned 100 buy.
Teaming Air Vehicles ($7.4 - $11b) ....Loyal wingman.
https://www.defence.gov.au/sites/defaul ... e_Plan.pdfChart 4 – Key Air Domain Investments
F-35 Lightning II ($9.9 – $17b)
EA-18G Growler Replacement ($7.6 - $11.4b)
High-Speed Long-Range Strike, including Hypersonic Research ($6.2 - $9.3b)
Armed Medium Altitude Long Endurance Remotely Piloted Aircraft System ($1.6 - $2.4b)
Teaming Air Vehicles ($7.4 - $11b)
E-7A Wedgetail Replacement ($14 - $21.1b)
Deployed Ballistic & High-Speed Missile Defence ($15.8 - $23.7b)
KC-30A Replacement ($17.5 - 26.2b)
C-130J Hercules Replacement ($8.8 - $13.2b)
Joint Air Battle Management System ($1.8 – $2.8b)
Medium Range Ground Based Air Defence ($4.9 – $7.3b)
Air Control Enhancements ($2.2 - $3.2b)
Air to Ground Weapons ($1.2 - $1.7b)
Air to Air Weapons ($1.7 - $2.5b)
MQ-4C Triton ($1.8 - $2.7b)
MC-55A Peregrine ($1.1 - $1.7b)
Distributed Ground Station Australia ($1.2 - $1.8b)
Additional ISR Capability ($4.1 - $6.1b)
Operational Radar Network Expansion ($0.7 - $1b)
P-8A Poseidon Assurance ($2.4 - $3.6b)
Air Mobility Assurance ($1.8 - $2.7b)
Air Launched Strike Capability ($3.4 - $5.2b)
Additional Air Combat Capability ($4.5 - $6.7b)
F-35 Replacement Evaluation and Design ($300 – $400m)
E-7A Wedgetail Capability Upgrade ($2.3 – $3.5b)