Wyrdness said:
Things to note from the trailer first take:

- Link's core mechanic is going to be something to do with his arm, what ever that ethereal arm holding who is assumed to be the main antagonist is in place surely gets passed on to Link as it's seen in a scene appearing to save him.

Yup, pretty much this. 

Now does this mean the sheika tablet will become useless ? Probably for some story reason.

I'm actually expecting the castle to get transported into a new land of sorts where Link has to rely on this new found ability.

Switch Friend Code : 3905-6122-2909