At least with the 29 / 2, Stagecoach have a depot at both ends so can react to whatever happens as a result of the two separate tendors.
If they tender for both the 254 (KCC) and 304/5 (ESCC) and only win the former it could be a lot more interesting - I guess they would then decline to take up the tender. I wonder if they would even bid for the 254 knowing that might happen and with the need to concentrate resources elsewhere.
NG.
P.S. Here's a little thought. If Arriva win the 254 back they could put the "Sussex" back into AKS.