USA loses a lot, which might balance out Germany and Japan vs. Russia.
Thoughts on Pacific
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USA would collect only 50 IPCs per turn once they lose Philippines. Japan can easily still climb to high values since the DEI have most of their value baked in. I don’t see America as being capable of abandoning the Pacific in this rule set. Japan can get beastly quickly if they take Hong Kong (3), DEI (15), Philippines (2), Malaya (3) - that alone puts them at 49 not including any Chinese or Russian territories - basically parity with USA. I can’t imagine USA being able to ignore Japan at all.
Germany will be losing some hefty bonuses early. They won’t get the Norwar/Denmark OR Russia bonuses, nor will the Russia bonus be replaced with a VC bonus in the Russian interior. No unit in Egypt will actually be nice, since that’s always a pain in the butt. Russia will essentially get their normal income, since they rarely get the bonus, but pushing into Europe will be much slower for Russia since they won’t get the bonuses for each original German territory.
Italy is going to feel the most pinch. They will lose the 3/4, ships in Med, and all the Middle East bonuses. This would require Italy to secure those southern European territories (Yugoslavia 2, Southern France 3, Greece 2) to have much of an income to compete with British naval might. Britain will not get the automatic +5 IPCs their first round which always aggravates everyone anyway, and will see German subs as the standard threat instead of an additional threat for their NO bonus.