Wow! MicahFFX deduced the clue from the grid state. That's impressive!
If MicahFFX is correct, then continuing on the theme of deducing the clues from the grid state .. it looks like Liberty and hammerhead might be a fixed distance apart (one month).
If Liberty and hammerhead are one month apart, then we have:
Escape, Vicky -> Pegasus
Liberty -> hammerhead
Since Escape and Liberty are in the same category and they are both one month away from Pegasus and hammerhead, it follows that Pegasus cannot be hammerhead.
That will leave only one option for hammerhead.
This is a great new twist on these logic puzzles. Deduce the clues.