If certain pieces fall into place, Supergirl could be crossing over a lot more with her CW brethren in the future.
According to Deadline, there are substantive talks between CW and CBS about moving the show over to CW's lineup. A decision is likely to be made by today or tomorrow, though that isn't set in stone. The biggest road block seems to be whether The CW can handle a show of that cost and scale.
The first season was shot in Los Angeles, but if it were to be picked up for a season 2 it would move shooting to Vancouver in an effort to bring costs down. Supergirl's numbers remained high for CBS and still commanded a 2.4 rating in the coveted 18-49 demo even after dropping some from its debut.
Ultimately it comes down to what CBS is willing to put into the show, but if it were to get second life anywhere, the CW makes a great deal of sense. Not only is it home to Arrow, The Flash, and Legends of Tomorrow, but CW President Mark Pedowitz has gone on record as saying he regrets not going after the project more when it was looking for a home at the beginning.
We'll let you know more as it develops.