I thought I'd make a thread for this because some of the theories are interesting and it'd be easier to read them without going though the entire Chapter 594 thread.
So what is everyone's theory on Luffy's message?
So far I've heard things such as:
Luffy ringing the bell 16 times means the beginning and the end of an era. Which happened once in Loguetown, so he's telling his crew to meet up in Loguetown.
Luffy's tatoo says SA2Y, which could mean something like "Shabody Archipelago 2 Years." meaning a time skip… which seems a bit odd to me since he so badly wanted to see his crew. But you never know.
What are some other theories? I like the Loguetown one myself because even then if there's a time skip, all the Strawhats are at least together durning it.