The reason why Standoff won't have multiplayer are that 1) game design hasen't been done with MP in mind, it'd probably break the balance of the game and 2) HCl is a very busy man, reappearing once a year or so, so we should be very thankfull to him for having multiplayer WCP at all ! 
Oh wow I didn't realise that losing ep4 would give a whole different ep5.
Duhh
If that's the case then back I go!
Are there any endings where Sparrow and Bradshaw stay together?
. Bradshaw doesn't stay together with Sparrow, because their getting back together was a huge mistake from Bradshaw's perspective. They don't work well together, if they stayed together, they'd quickly make each other miserable.
.Yeah, but we weren't doing soap opera, we were doing film noirNo, I don't think that alternate ending would've been a good idea. But on that "failed dismally with the story" I'd say the breakup dialogue would have needed something more. A bigger reaction from her, some arguing: "but I thought..."; "after everything we..."
A little more soap opera drama. Now it's slightly unclear for an absolute final breakup.
. Besides, that's kind of missing the point -