All valid points but let me clarify:
-he wrote the training keynote for our market about the Apple Watch. He was instructed to do so per area leadership after his Apple Watch training
-he is not just a random apple retail employee. He's someone I worked with for 2 yrs and consider a good friend. Actually he finds this thread hilarious.
-Where are the pics anywhere of an Apple Watch (SPORT) with a metal or leather band??
Earlier I said that I didn't think /you/ were making it up... this post changes my opinion. We've seen this same post over and over again on this site. Somebody who's full of it comes on here talking about what their retail employee friend/cousin/lover/cousin's lover/friend of mom's friend's of cousin's lover told them some piece of information about a yet to be released product that they can't possibly have. Then, when it's questioned, this super defensive "He owns Apple!" type of post comes up.
If, you're telling the truth then congratulations, you've just had your friend fired. My guess though is that this "friend" is safe. We'll see this again around the iPhone6S (or whatever it's called) launch.
While there isn't a picture of a sport case with a metal band on the apple.com website, there is a picture of an SS case with a sport band. Since we can safely assume that they mount in the same way, we can also assume then that the metal band will work on the sport case. This has been presented multiple times in this thread.
To answer the question about whether it's likely that Apple will sell the bands separately at launch, we only need to reference the last several iPhone launches with the multiple cases available at launch. It is an Apple signature move to design a couple of accessories and provide them as an upsell at launch. I am confident that will happen again. Since silicone and leather cases don't really apply to watches, the bands make sense. My guess (nothing to back this one up) - florolastemer bands: $50, Metal and Leather bands: $99