See you later means ... That they want to speak with you again. I use it a lot because sometimes you have to hook the bait if you want to catch some fish.:P

this is the same as "for the next meeting".

Not really. It's more like a conventional way to end a conversation and leave. People will say things like "see you soon" or "catch you later" and it's not rude or offensive. Those are just other ways of saying goodbye and leave taking. People will even say "Let's get together sometime" or "Let's do lunch sometime." They aren't really planning a meeting with the listener. It's just a way to end the conversation. If they really want to meet up again and have a business appointment or a social activity with the other person, they will be more specific about the time. They might say something like "Do you have any free time next week?" or "How does this weekend look for you?" "Are you up for a movie this weekend?" "How about drinks at Bar X this Friday after work?"

see you later, catch you later = 回头见 see you soon = 待会儿见