The F-18 Superhornet line is expected to cease production around 2025.
So if an order was placed, it is entirely conceivable that the planes could be produced, the USN may allow earlier spots, but even if not its not a huge wait. USN is probably happy to delay final plane delivery as long as possible. Certainly a F-18 SH order is more doable in that time frame than F-35. The Swiss order is starting delivery around 2027.
I'm not sure we need more E7's, we already operate quite a large fleet, much larger than UK, Turkey, South Korea (like as big as UK and Turkey combined). Also the US is absolutely desperate for this aircraft so I don't see any other nations pushing in front of the US for that kind of aircraft. However, we should consider upgrading ours with relevant upgrades the US is making to their E7's.
I think its reasonable to order 1-2 extra P8's, delivery and standing them up might be doable. But this is looking like a Boeing sponsored solution event.
General Molan argues for a 3-5 year time frame - so shorter than that proposed by the authors. The outcome of the defence review currently underway will be interesting - particularly in terms of how the current environment is assessed, and the response - particularly across the 3, 5 & 7 year horizons.
The time frame I see commonly is 5 years. 2027. Several countries have started to shift their plans to really put future capabilities in two categories.
pre-2027 and post-2027. Near and far. Taiwan, Japan, South korea etc. The US too. We are seeing plans to more lower priority the long term capabilities and raise the short term capabilities.
As we get closer to 2027, people expect things to unravel. So supply chains will either start to fall apart or become occupied with larger domestic orders. So by 2027 you would really want to be seeing IOC-FOC by then not just a potential delivery date.
Post 2027 is murky. Even if it isn't exactly jan 1 2027 things fall apart, there is now a bit of a line being drawn around capabilities that can be stood up quickly and more longer term strategies.