Well we've seen 3 Rip Hunter charl boards. One in 52 and 2 others in Booster Gold. They are supposed to give us hints of something that is happening in the DCU or elsewhere.
Will post what the three say here
WORLD WAR III WHY? HOW?
Dead by lead?
TIME IS BROKEN
Further time is different
The four horsemen will end her rain?
He won't smell it.
Find the last "El"
MAN OF STEEL
Sonic disrupt -- Time Masters -- Time Servants
The reach. The reach. The reach.
The Tornado is in pieces.
"I'm not kryptonite"
it hurts to breathe.
2000 years from now
The Scarab is eternal?
Where is the Curry Heir?
Who is Super Nova?
What happened to the son of Superman?
Where is the Batman?
Who is the Batwoman?
Te versus (Au+Pb)
Who is Diana Prince?
Don't ask the Question. It lies.
Someone is monitoring. They see us. They see me.
KHIMAERA LIVES AGAIN
The Lazarus Pit RISES
The old gods are DEAD, the new gods want what's left.
I'm supposed to be DEAD?
WHEN AM I?
Casey the cop
Find the Sun Devils
What is spanner's galaxy?
Second chalk board:
(New Earth, Earth-2)
1985 + 2006 = Why 2008???
Superman & the Legion of Super-Heroes
Thom Kallor = Traveler?
Power Girl: Missing
The Return of Ray Palmer
Beware the Red Lanterns???
Ronnie Raymond + X = Firestorm!
Long Live the Real King
Titans Hunt II
Don't worry about Countdown - focus elsewhere
Who is Dr. Thirteen???
The Ghost Detectives have all the answers!
No Ray Palmer = Disaster
Who controls the Wildebeest Society?
The Sun Devils will save us all!
Lightning Saga(s) strike twice???
Who will escape the Book of Destiny?
3000 + 8
Steve is watching
Death of the Supermen
No trophy = Stephanie?
Who does Supernova work for?
Gog is dead! The Age of Gog is upon us!
The Vigilante knows the traitor - the League does not!
Ok some of them like "Where is Batman?" and "Who is Diana Prince?" are too obvious lol
But some of them are hard to find out what they mean