I think luffy did say that he will find
at least 10 crew members. That is his ideal
My intepretation about author comments is
that we are at Vol. 97 and already got 9 nakama including Jinbe. We are closer to luffy's ideal number of crew members (at minimum)
But who knows? I could be wrong
I still kinda believe we'll get 13 members in total
. It's my prediction based on potential dream/goal of each remaining crew member :
11. Hiyori
12. One of King race
13. Pedro
But if I have to pick one, I'll choose hiyori or pedro (if he comeback
)