Canada

I think as of now RCAF still wants them and the deal isn't off yet. I imagine it's also a card that's used in the negotiations with the US. I wouldn't be surprised if we end up staying with the F35s.

I find it wild that we are still considering buying military planes from a country that is threatening our sovereignty lol. I'm sure it's more complex but ..... also, it doesn't have to be. Just buy from somewhere else.

Well, there's the very real possibility of having to fight the americans, who install kill switches and make everything proprietary so you can't make your own parts.

So, go without planes, or pay your most likely military enemy for the privilege of going without planes?

No other aircraft can do it as of now. A potential VSTOL derivative of the Tempest?

The royal navy doesn't even have the aircrafts for its 2 carriers. The entire UK military is notoriously underfunded even in critical aspects like SSBN. Not likely to fund a new aircraft.

Italy and Japan both already have their F-35Bs for their carriers. It's hard to see them ditch multi billion investments.

Korea might get a STVOL Carrier eventually but they are involved with lockeed on other projects, and operate F-35A already. so they are likely to get F-35B as well.

I mean outside of Spain I don't see who needs an F-35B alternative. Spain lacks a proper aviation industry but maybe they could keep on getting upgrade packages for their Harrier II for a few more decades. Who knows? Maybe in 20 years strategic alliances will have shifted and Chinese airframes will be on the table.

There's nothing similar stealth-wise, either, at least for that kind of aircraft.

It's a really really good plane, like you'd expect from however many trillions spent in project money. It's just that the Americans control the software running on it.

The Saab Gripen has had some studies around whether it would be possible to adapt to carrier operation. Several countries seem to have expressed interest, but no commitments have been made yet. From wikipedia:

Saab studied a variant of the Gripen capable of operating from aircraft carriers in the 1990s. In 2009, it launched the Sea Gripen project in response to India's request for information on a carrier-based aircraft. Brazil may also require new carrier aircraft.[74][75] Following a meeting with Ministry of Defence (MoD) officials in May 2011, Saab agreed to establish a development center in the UK to expand on the Sea Gripen concept.[76]... ; further development of optionally manned and carrier versions would require customer commitment.[77][78] On 6 November 2014, the Brazilian Navy expressed interest in a carrier-based Gripen.[79]

Yeah, something stupid.