It's a pretty wacky plan. Some inside jokes for WoW players in there.

They confirmed it's the same person. He was 18 or 19ish when he fought Jack Murdock (which works, Tyson was heavyweight champion at 18), and he's mid 30s in AoS.

You can walk into Daredevil entirely blind to no negative effect. There are a couple of tangential nods to the greater universe, but even if you're on the lookout you could blink and miss them. Highly recommend you give it a spin. Great show.