Yes, this is another one, but this will center on another issue instead of whether or not the operation would've been successful.
There's pretty much a consensus that it would've failed, but that doesn't mean that Germany wouldn't have attempted it.
Operation Sealion is launched on the same date as it was planned for in OTL. The Operation fail as spectacularly as reasonably possible.
What are the affects on the rest of the war?
This thread is merely to discuss the damage and after-effects of the failed Operation, not the likely hood of it succeeding. We have a ton of threads for that.