Yes the F 35 should be around for a long time.There is an option. Technically Australia still has outstanding 28 F-35 options that we could exercise any time we wanted. Though in past that was assumed it would be either A. Skip those keep SH or B. Replace SH with the 4th F-35 sqdr.
F-35 will be arguably in production for quite some time yet with exluding any delivered to date FY 2022 from January 1 2022 at planned production rate of 156 a year under current orders yet to be fulfilled (excluding japan as I beleive they are building them there) there are 2,340 aircraft barring any increases or decreases that may occur which gives enough capacity for production to run through to December 2036 so little need to rush a decision just yet, Got a good decade before we need to start worrying.
Assuming it proves itself to be the dominant multi role platform it was designed to be, then the RAAF is well placed to add to it's F 35 fleet.
Yes that 28 option does come up in conversation.
Realistically the RAAF may play around with those numbers.
I'd be interested as to how the F35 evolves.
Designed from the start to be of three variants I wonder if it eventually evolves into a F35 D , E or F.
Certainly the teen series evolved over their long lives.
I could see some merit in developing a conventional version modified with the larger wing off the C and some extra length for internal fuel to give some increased range.
Anyway
Let's see what eventuates
Cheers S