End of an Era, or is it?

With the UFC 2013 books being closed, has the marked number 13 brought forth the End of and Era? For a combined 14 years, Champions and PPV stars George St Pierre / Anderson Silva reigned supreme in their divisions and headed the pound 4 pound rankings. Fans long dwelt on the idea of GSP Vs Silva, that it would be the only way to decide whose No.1 and the only way either 1 would be defeated.
They each drew the biggest hype, crowds and PPV buys, being responsible for drawing many new fans to MMA.

Welterweight Johny Hendricks and Middleweight Chris Weidman work their way to the top with impressive finishes of high calibre opponents while St-Pierre & Silva continue their legacy.
UFC 162 Chris Weidman gets his opportunity and shocks the world with a KO victory over Anderson, "He got lucky" "Anderson Beat himself" "You cant play games in the octagon" we heard all the reasoning, regardless he defeated Silva, claimed the gold & the rematch was booked

 UFC 167 Hendricks looses a razor thin split decision to GSP with a likely rematch to follow after many say "Hendricks was robbed".
(UFC 167 Live Blog Here)

UFC 168 "I Back trust me I back", Anderson Silva's stern words heading into the rematch with Chris Weidman.

St Pierre walks away from the sport, retires the championship, and UFC 168 ends in devastating fashion for Anderson Silva (Live Blog / Results Here) likely signalling the end of his career.
The emotion, that empty feeling of not seeing GSP rush down the isles toward the GON, not gearing up for Anderson to dance around an finish his opponent with precision strikes is a hard pill to swallow, the hype is no more it is the end of an era.

Or is it?...

Johny Hendricks gets his deserved shot at the title at UFC 171, the man he squares of against is veteran Robbie Lawler, Lawler debuted in the UFC in 2002, fought outside of the UFC for strikeforce and other promotions between 04 and 13 before successfully returning in February with a KO win over Josh Koscheck.
Chris Weidman will fight Vitor Belfort in 2014, Vitor is the longest running UFC fighter, debuting at UFC 12 in 1997, now possibly in the best shape of his career.

(What's behind Vitor's re-birth)

Vitor is extremely hungry for UFC gold, at age 36 it may be the final opportunity he gets.
Lawler and Belfort hold a key that no coach can teach, no amount of money can buy, experience!
Should they be crowned new champions there will be no End of an Era, the Era will receive a second coming and affirm 'Crazy things happen in the Octagon'

Will St-Pierre return to the sport when least expected?
Anderson has defied what is possible and what's not with incredible fighting styles, will he recover like no other?
2014 and the future, there is plenty to look forward too!