I know lobo can't die, but what would happen if say, imperiex incinerated him to nothing?

Meh.

I would buy the issue, just for the sake of seeing a character that I don't like getting owned.

-_____________- meh ur mom anyway

Bump

Then he would return in a few months and it would turn out he didn't die, he just went on vacation.

Ok then...

He cannot die, he's banished from the afterlife

Would anyone notice?

I reckon he'd turn up at the gates of Heaven or Hell, light a cigar, and then proceed to pistol whip his way through the afterlife until someone finally fixed him up with a new body and sent him back.

I would be happy.

He would still manage to light a cigar.

No one would miss him.

He'd become a ghost. It's happened before.

Can he be erased from reality?

Probably. He almost went to Heaven forcibly in Lobo/Deadman: The Brave and the Bald and he went to an alternate Hell in the 2011 issue where the Justice League goes to Hell.

For what it's worth, the Black Racer collected Li'l Lobo when he died.