Bright side for whom? If the Allies are that bogged down in Italy they're not going to be reaching the Rhine or Germany itself any time soon, but the Soviets will be quite well-off.If Germany starts taking hits on its military capability strong enough to aid the USSR at the right time for it but the wrong time for the UK and the USA.....
In anycase, things are going to become alot more grim for everyone wether they be winner or loser.
Of course, Stalin and Hitler will think little of it; they have "agenda's" to work on after all.....