Yes, since the outcome is pre-determined and it is Spielberg and Hanks not Tarantino, there won't be any surprise parrallel universe endings.
Well I finally got to see episode 3 tonight (I know, I'm behind). It was an interesting episode since it dealt entirely with their leave... I thought it was interesting that, to train them, they just dumped them 100 miles from where they were with the food rations the Japanese were used to getting, and told to hump it back. That's a good way to test your guys and their fitness I guess.
The budding love stories were a different direction... Not necessarilly what I'm interested in watching, but at the same time it gave a probably much more honest expression of romance at the time, compared to a lot of other movies from the era. Some saw you off, but others wanted you to leave their lives for fear of the pain of losing you in battle. That stung, and was a really sad moment.
Anyway, I've got Episode 4 to watch when I get some time... That'll be never.