Just did a quick google check. Looks like Young Justice Season 5 is dead in the water, thanks to all of the cost cutting going on over at the WB division after the big merger.
As I'm sure a number of you are aware, they shelved the $90 Million Dollar Batgirl movie permanently to qualify for a tax break (which means that it'll never see the light of day again unless someone breaks into the WB vault and steals the film), and a number of other shows have not been renewed.
There's a chance that things might change once the dust from the merger has settled, but as it stands right now, it looks like not much is going on DC animation wise at the WB other than Season 4 of Harley Quinn (which will show up in a year or so, Season 3 just wrapped). Still, the Batgirl movie being permanently shelved is probably a shame. It might have been good or bad, either way we will never know...
So it looks like it falls on us (Sunset Rider 7 and us fanart types) to help keep the Young Justice spirit alive in the meantime! Even if we are just doing porn parody stuff...
I call this one
'Martian Love'!