We have waited since E3 2017 for the super duper graphics pack we thought it would release on november 7, nope still not out. It was supposed to be out december 6 then... NOPE! I get it's hard to make but it's 2018! On a live stream with those Minecraft guys they said it would be a while until we get graphics pack! Anyways the nintendo switch bedrock is still not out but it should hopefully be out cause another Minecraft guy tweeted out that he or she was testing the nintendo switch. So the better together update should be out soon.
I've tried to do alot of research on the super duper graphics pack, it's really not talked about much. My guess it will most likely be coming this year around summer time.
I have some info from some of the streams that the community team does. Super Duper Graphics pack is NOT coming out anytime soon. The developers are having to rewrite the ENTIRE graphics in the game code in order for it to work. So it isnt coming out for ATLEAST a few months. As with Bedrock Switch, it is coming soon. The team are working on it every day and doing new builds of it. They are running into a few bugs which they have to fix but they are working on getting it done as soon as they possibly can. They are both coming, it is just taking more time then planned.