You can Play all 5 Nations at once...

"Explanation of new ticking system:
This new system has been implemented to allow you to PLAY ALL 5 OF YOUR NATIONS AT ONCE. (Yay!) In order to activate ticks for your nation though, you will have to actively do something with that nation in terms of battling.
Ways to get ticks:

• Do a Quest. Successful completion of a quest will give you 12 hours worth of ticks. If you lose a quest, the same equation which determines whether Gods are Satisfied in PvP is brought into play. If you legitmately tried and lost, you will get your 12 hours of ticks.
  
• Fight a PvP. If the Gods are Satisfied, you get 12 hours.
  
• Raid or be raided. You get 12 hours.
  
• Play a tournament. You get 12 hours per round. Basically, you get 12 hours of ticks per battling action. You can store up to a total of 7 days worth of ticks. If you are offline more than 3 days, you only get those 3 days worth of ticks all at once though. (An improvement on our current system where you only get 2 days worth.) " - Source the Patcher notes

I personally think this is hot. I was going to play my Undead army and retire my light, but now, I guess I will play all three.