Bet Smoke will be an Enenra as his alternate costume.

The enenra form is interesting, but I'd hope it doesn't come too much into play besides origin.
Sareena already has demon transformation covered. The enenra could empower Smoke in the Netherrealm. Lashing out in some way against Quan Chi.
Hmm, this is the second time Smoke has died now.

I think this is Smoke's only death. In the previous canon. He was captured by Shao Khan's forces brought back to his palace where he was left as a trophy and he shut himself down before being reactivated by Noob. I dont think that counts as a death [unless you consider the automation process as killing them]

I count this as being his 2nd death considering the backstory given in his arcade ending about being sacrificed by a cult as a child and coming back as an enenra. Of course, Amrageddon could possibly count as a 3rd death, lol.

Armageddon doesnt count it never happened the timeline changed

I'm just hoping Smoke cheats death and makes something interesting out of it. At the same time, I hope he doesn't become a brain washed villain like last time, but that's just me.

If there was no armaggedon how would raiden send a message to himself?

I'm fairly certain the demon you saw in Smoke's ending wasn't his enenra form, it was the demon he was sacrificed to.

An enenra is supposed to be made of smoke the text said, so his enenra form is probably the same as his smoke-body form from Deception except without the cyborg helmet.