Yes, AIDE is due to leave tomorrow. AMBASSADOR will then take her place on Thursday.
Current list of ships coming through Mare Island:
AIDE 03/08 to 03/21
AMBASSADOR 03/22 to 04/09
ADVENTURER 04/11 to 04/24
AGENT 04/11 to 04/24
GLACIER 04/17 TO 05/02
These dates are screwy since three ships would be at Mare Island in mid-April. I presume the schedule will be changed again.