I think your sentence is OK, but more natural for me would be this:
OK, we will meet up somewhere in a pub and you can tell me...
"Will" here indicates a decision. You haven't planned to go to the pub, it's an idea that occurred to you just before you said it. It's spontaneous.
If you put "will" in the second part of the sentence, it might mean: "I am going to make sure you tell me even if you don't want to." It may not be interpreted that way, but it might be, depending partly on how you say it.
Sorry, I know this is complicated, but in English, talking about the future is sometimes complicated.