It's hard to tell from his Minecraft interview circuit with him wearing a crochet sweater, but looks doubtful he will have the Aquaman era bulk and shredded muscles for Lobo, unless that sweater is hiding a suprise. Still ... perfect casting.

I love that this leaves open the possibility that we might one day see the Sith in their heyday as they truly were. . . OR one day see them claim it from Sideous' bastardization and return to their former glory.

The Emperor was never in danger. He wanted Luke to ATTEMPT to strike him down as a first step towards the dark side. Who would strike an unarmed person? Someone who would give into their anger. He knew Vader had his back and if he didn't Darth Sideous would just freeze Luke w the force where he stood. It was as he had forseen.