I assume you mean Walt.
There's a lot of angles open. Of course. That's what makes the show great.
Hank vs. Walt is coming. It's inevitable. Hank keeps seeing things the other DEA guys aren't. He's always finding the obscure pieces of evidence, and no matter what Walt tries to do, there's something he missed which will lead Hank right to him.
Don't forget the scene where Skylar tossed the coin on the four corners. It landed on Colorado. Either Skylar's going to disappear with the kids or that's where Walt takes his family into hiding.
Walt's out of money. While Walt thinks he's won against Gus, there's still Mike and Hank and any remnants of the cartel and others he has to look out for. If he wants to use that guy to change his identity, he's going to need to make $200,000. Bam. Walt's cooking again.
We were given hints about Gus's influence and power towards the end of the season. The Mexican doctor saying Gus pays his salary. Mike's allegiance to Gus (punching Walt in the face). The cartel's inability to kill Gus because Gus has so many distribution centers to transport drugs. Someone will have to step up and take over Gus's organization. Why not Walt? He cooks. He's ruthless. Now, getting him to that point will be complicated because why would any of Gus's men trust a broke, vengeful Walter White?
Cancer. We were reminded about Walt's cancer when he went in for tests in that one episode.
Damn I wish the next season started next week.