Hi Andreia,
The idea is that there is supposed to be a single survivor.
In the movie the Capitol's hand was forced when the two finalists, who had been promised that they would both be allowed to live, had the promise withdrawn so they threatened to commit suiside leaving no winner. Capitol backed down allowing both to live.
That is where the ultimate quandry will come in. Clark wants to protect Becky and now Lois is involved. With Kryptonite in the picture even his survival can be in question. Also, don't forget about Trask. He could also stick his ugly nose in.
There are so many ways Anne can go with this story it is mind boggling.
