SAN went junior with another large bid planned for the near future. There were presumably some senior folks taking a wait and see approach on the first bid, but given that there were about ten unfilled FO slots, with I think another 40 more planned I would expect SAN to go junior on the FO side.
There might be some OO people applying to AS specifically for that base too, we won't have visibility on such new hires until June though, aside from rumor mill.