A client wrote to me and ended his email with this line:
If I don't talk to you beforehand, I hope you have a very happy, healthy and safe holiday!
It seems to me that this expression is for giving a heads-up of information to someone when you think you might forget or fail to do so in the future, but I need a second opinion on that.
I found some other examples with the same expression over the Internet:
(1) That’s all I got for ya! I can’t thank you enough for all your support, and I hope you’re having as much fun with all the reviews, interviews, spotlights, and gif battles as I am. I’m going to continue with these different features this month, but I’m hoping to bring you some fresh and interesting new things in 2020! If I don’t talk to you beforehand (chances are I most definitely will), I hope you all have a wonderful Holiday Season, and a Happy and Healthy New Year!
(2) If I don't talk to you beforehand, I'll see you in the morning.
(3) If I don't talk to you beforehand, I'll pick you up at your sister's at seven.
(4) A: If I don't talk to you beforehand, I'll see you at Watch Night?” B: Service is at ten, right? A: Yeah, but I plan to be there by a quarter after nine so I can get a seat. B: Okay. I’ll try and meet you there at that time.
Could somebody enlighten me on the exact meaning of this expression? When and why would you use it? Or is there another way to express "If I don't talk to you beforehand," in the same connotation?