Gecko Moria according to me would be alive considering the facts of unpredictablity in One Piece.
Gecko Moria was a great pirate and had a great crew. But his crew was destroyed by Kaidou
After then his main enemy was Kaidou
To take his revenge he might align with Luffy.
If he joins Luffy as his 11th Member, it might be awesome.
Just a prediction