HYPE: Cryptic Messages - What are they?

Cryptic messages have begun appearing within the hallowed halls of The Great Arena, sparking speculation over their true meaning. The messages began appearing over the past week, coloured red and purple, respectively. So far, none of the messages have been directly connected to anything known, but there are a few references that are too obvious to miss.

Red messages (recorded over the past four days):
... THE FRONTLINE...
... EXTINCTION AGENDA...
... CIVIL ACTION...
... INFERNO...
... DEAD OR ALIVE...
... END OF INFINITY...
... WORLDS COLLIDE...
... DARK NIGHT...
... BREAKING POINT...
... HIGHWAY TO HELL...

Purple messages (recorded over the past four days):
THE IMMORTALS ARE TAKING IT BACK!!
... TOWER OF POWER V...
"Looking back at beyond, a final resort." 13:5
... THE RECKONING...
THE WORLD TOUR IS BACK ON!
... ALL-STAR SUMMER SHOWDOWN...
"SEIZE THE DAY!"
"A figure from past, enshrouded in dread." 13:7
THE GREAT ARENA IS NO LONGER YOURS!
... DEAD OR ALIVE...

The names of Pre-Show and Supercard events can be taken from some of the messages, both red and purple. Two names stand out in the red text: Highway to Hell was the name of Pre-Show 13, held back in September 25, 2011, while The Frontline is the name attached to the upcoming Pre-Show 25 (June 10, 2012). Pre-Show 25 will see fighters compete for their right to comprise the Challenger 7 -- the group of unranked, qualifying challengers to the Tower of Power format. Supercard 25: Tower of Power V is right around the corner, schedule June 17.

Other purple messages allude to events, past and future, as well.
Supercard 24: The Reckoning took place May 20, 2012, while All-Star Summer Showdown is the August counterpoint to the biggest show of the year, Ultimate Grand Prix. The last All-Star Summer Showdown, Supercard 11, was voted the best event of 2011, receiving 60% in a poll of Arena icons. The event was memorable for pairing some of the most anticipated rivalries together, in some cases, for the first time.

Dead or Alive is a message repeated in both red and purple. While the syntax appears to be much the same as messages referring to past and future events, there has been no event by that name, nor is there known to be any upcoming. Could this instead be the mandate of some unknown force?

A somewhat threatening tone emerges in the more elaborate purple messages, which, if taken at face value, could refer to a common reference. The Immortals is an unclear term, but the intimation of an intent to take something back -- combined with the claim that The Great Arena is no longer "yours" -- suggests someone, or somethings, with competition. "Seize the day!" is a quote that fits the mantra of this possible threat, if interpreted the right way. Could this somehow relate to a "World Tour"?

It wasn't too long ago TonyTheTiger embarked on a Championship World Tour, facing Union fighters from around the globe. Is the coming Olympic Games somehow related, and is a World Tour potentially linked? Countdown to The Games was launched May 22, beginning a weekly contest of randomized match-ups between world warriors from the League -- preparation for the Olympic Games, coming in August. All-Star Summer Showdown is schedule to take place after the Olympic contest.

Whatever the case, the plot is only beginning to thicken as the next few months draw near.