This situation reminds me of when Prospect Park tried to revive All My Children and One Live to Live. Despite boasting that they would have the shows back in the same length and frequency (that is, hour-long episodes five days a week), their budget was microscopic and there was absolutely no way they could afford to re-hire all the actors for anything close to what they'd been making when the shows were on ABC. Soon the fans were laying odds on who would stay, who would go, who would "guest star"....and in the end, Prospect Park couldn't even finance the studio space, much less daily, hour-long episodes. The stars who did sign on did it more out of sentimental attachment to their roles rather than any kind of career advancement, but the more popular actors saw their roles expanded greatly as a reward for sticking with the show(s). There were huge gaps in stories where certain characters needed to be present but were not, simply because the role was essentially un-recastable. The recast characters were not an improvement on the originals, and the whole effort came off as amateurish because they had no money for realistic sets, no time for rehearsal, and no plans for long-term plot movement.
I guess Days will not be able to plot any kind of future for itself until they know who will stay and who is leaving. KA's decision to walk might just be the first of many such announcements. One would think NBC would try to release these names all in a short space of time to dull their impact rather than waiting for the dust to settle and then dropping another name. Should we lay odds on who will jump off the boat next?