Don’t think the Brits would want that actually. Not after everything it’s been through. And I especially don’t think the Americans want that either. While the partition of Germany was still being debated, there was definitely a sense that it can’t be made a threat every again and that’s not going to be up for debate. France especially will scream at the top up it lungs to demand that Germany made a threat no longer.
The UK would probably be the power most in support of a strong post Valkyrie Germany as a strong counter balance to the Soviets, who they’ve never particularly trusted. They’re who were thinking about operation unthinkable before the war was even really over in OTL. With the war going even better in TTL I can see the Brit’s coming to that conclusion sooner rather than later. Particularly since they’ve already given up the straits to the Soviets, that might make them extra paranoid.
The real fly in the pudding is Roosevelt as I’m not sure what he would do. If the option for peace was on the table and the cost was Austria I could see him taking it to save American lives. Unconditional surrender is great in concept but hard when a deal like that manifests before you. I could equally see him fighting to the end. I could see him going either way.
And France can kick and scream all they want but seeing as they’re economically and militarily gutted at the moment and the freedom of their country rides on the might of the UK and US, they don’t get much say. If they decide to go with a Valkyrie peace deal, it’s happening regardless of what France might want. I’m not just saying this because I’m a Greek fan but honestly the Greeks are probably punching above Frances weight in both of those categories at the moment. And they basically got told they aren’t getting what they want the most so suck it up. France would likely get the same treatment.