Update, 4 p.m.: Three-time WWE World Heavyweight Champion  Sheamus will make his long-awaited return to WWE Monday on Raw, WWE.com has learned. The Celtic Warrior has been out of action since November 2014, and  vignettes hyping his return have been featured on Raw for the last several weeks. What will kind of statement will Sheamus make on Raw, and who might be on the receiving end of 2015’s first Brogue Kick?

Many people call WrestleMania the “season finale” for WWE, which means the first Raw after The Show of Shows marks a new year for the WWE calendar. What unforgettable moments, memorable chants and match-of-the-year candidates will take place when Raw airs live on USA Network at 8/7 C? 

Full WrestleMania results |  Watch WrestleMania on WWE Network

What’s in store for the Rollins era?

For the first time ever, a Superstar cashed in his Money in the Bank contract at WrestleMania. With Brock Lesnar and Roman Reigns both down, Seth Rollins set up an impromptu Triple Threat Match and Curb-Stomped Reigns to become the new WWE World Heavyweight Champion.

What will Lesnar and Paul Heyman have to say about the controversial ending to WrestleMania? Will  Rollins escape The Beast Incarnate’s wrath? And what will Rollins’ first move as champion be when Raw airs on  USA Network at 8/7 C?

What’s next for Roman Reigns?

Roman Reigns promised he could and he would defeat WWE World Heavyweight Champion Brock Lesnar at WrestleMania. He fought valiantly and may have been seconds from victory, but came up short against the titleholder thanks to Seth Rollins’ shocking Money in the Bank cash-in.

How will the 2014 Superstar of the Year and the 2015 Royal Rumble Match winner react to losing his first title opportunity under such chaotic circumstances?  

Plus, what will the “Samoan badass” have to say to his former Shield partner Rollins for interrupting his WrestleMania WWE World Heavyweight Title Match?

One rivalry reignited, another sparked?

In the wake of Triple H’s shocking  victory against “The Vigilante” Sting at Levi’s® Stadium, Stephanie McMahon and the  COO took a moment to brag about their power on The Grandest Stage. The Authority reminded everyone listening that they own everyone and everything. But much to The Authority’s disgust, The Rock and UFC Women’s Bantamweight Champion Ronda Rousey confronted the couple mid–power trip.

What repercussions will come from Rock and Rousey bouncing sports-entertainment’s most powerful couple from the ring?

And what will Stephanie McMahon have to say about her onetime friend Rousey disrespecting her at WrestleMania? 

Watch Dwayne ‘The Rock’ Johnson host ‘SNL’

Who will challenge the new champions?

John Cena and Daniel Bryan are more than familiar with WWE gold. Cena captured 15 WWE World Heavyweight Championships, while Bryan claimed four in as many years.

The two megastars both left WrestleMania with titles, with  Cena winning the United States Championship from  Rusev and Bryan grabbing the Intercontinental Championship in a 7-Superstar Ladder Match. 

So who will be the first challengers to step up against Cena and Bryan? Will Rusev and Bad News Barrett look to reclaim their lost prizes? And is a new era underway for these storied championships with such dominant Superstars now in their possession?

Updated 3/30/15 7:55 - Just announced on Raw Pre-show: Cena has issued an open challenge to his new United States Title.

Are Nikki’s days as champion numbered?

Nikki Bella has reigned supreme over the Divas division for 126 days. Together with her sister  Brie, she’s been tearing through the competition — and kicking them while they were down. The challengers have come, and they’ve all fallen.

But at WrestleMania inside Levi’s® Stadium, AJ Lee forced the Divas Champion to  submit to the Black Widow, earning her and frenemy Paige a victory on The Grandest Stage.

How will the Divas Champion respond to being defeated at The Show of Shows? And has AJ proved she deserves a title opportunity against the  Fearless Diva? 

Find out on USA Network, live at 8/7 C.