The value of a software company is in its current project and in it's IP. If with the release of Nappy they are without a project then it'd be a good time to lay off everyone. Especially now that the IP has been devalued with ETW less then stellar reputation.
So I think the fate of CA is pretty much out of their hands. Even if NTW was awesomely well received and brings in a ton of money for SEGA, SEGA might still want to save itself the cost of developing the title after NTW. No programmers to pay looks better on this years books then a successful title in a year or two.