I'm not wild about the idea of a spin-off if only because it will create another situation where two shows that aren't really like each other (and granted, we have no idea what the new show will be like or even if there will be a new show for certain) will be crossing over every season. I hate it when networks do that. That, and now I'm not sure the character could hold his own show. But to be fair we really don't know him yet, so I'm more than willing to wait until I'm proven wrong before I say any more on that score.