Seems a bit of a waste for baby to have one a/c lying around for most of the day. On some days there isn't even a morning departure for one a/c so there is plenty of scope for another couple of routes even. Unlikely however.
Regarding Centralwings in the news article from which it was first rumoured they claimed that 'talks were in the final stage' so sounds like the management couldn't secure the route. What a shame, and the possibility of losing the Barcelona flights too!