I guess the character of Bria Tharen, who was part of a mission to retrieve the Death Star plans in an EU novel, has been made obsolete. Damn shame.
It's a pity that the first cast of characters portrayed by a multi-cultural cast ended up as a one shot deal. Pity.
I think having a character directly connected with Han Solo not only being a rebel, but involved in that specific operation was always a little too much of a coincidence. As for the cast: just from the context of ANH's opening crawl and what is said by the likes of Vader & Leia I think most fans knew going in what the score would be. Honestly it would feel a little cheep if they didn't go there.