I wouldn't mind a bit of jumping around, timeline wise. Hopefully this line has the legs to last a while and we'll get most of the characters we want. There are already a few that I never thought I'd see (Dexter, Alice, Bruce, Gabe). Character selection has been good so far and I trust DST's judgment.
As for the two that we are getting: I'm hoping for Carl and Martinez, although no combination of those four would make me upset.