Tito running rampant through the balkans, turning it into his little empire. Czechs, Slovaks, Austrians, and Hungarians kinda stuck in the middle doing their thing, also staring down the Russians. Germany still ends up divided, though on different lines - the north under Brit occupation through Hanover, the Ruhr becomes part of France once more, and the south probably a Nuremburg republic. Spain and Switzerland still stay neutral, along with Norway and Finland; the Swedes probably join in the French alliance against the Soviets. America gets tired of Europe, and has its own things going in the Pacific anyway, and come 1950 they're occupied by the Korean situation. The Low Countries would join in the French, while Soviet expansion comes in more subtle ways - less invasions, more advisors. And until 1949, they'll be looking over their shoulder very carefully at the Americans, giving Poland a few years to consolidate.
It's a rough summary of the idea a friend and I had. You'd end up with about 32 million population, but I daresay a vastly larger army than the defensive one we came up with originally for Fictional Republic (iteration 1).
Idly, no chance I'd get to go there, I don't travel well and I'm on fixed income anyway, LOL. What's the story behind it, if you don't mind?