The Big Bang Theory: 10 Theories On How It Will End

10. Raj's Wedding

This theory may be the most obvious seeing as most of the episodes from season 12 that have aired followed Raj's engagement. After finally giving in and allowing his father to "arrange marriage" him, Raj met Anu and the two hit it off.

Now that the pair have agreed to marry, it seems only logical the remaining episodes in the season will focus on the planning and execution of their wedding.

Since the series follows more than just these two characters, it's likely more will happen as the big day approaches, but Raj's relationships have often been a fun subject on the series and it's high time he settled down and had a family.

Given the way the series has gone so far, some fans have suggested their wedding might somehow be officiated by William Shatner in the same way Mark Hamill took care of Sheldon and Amy's wedding, but only time will tell as to how this will all play out.

Regardless of how it all happens, Raj's wedding is almost certainly going to happen before the series comes to an end. He's the final holdout on marrying and seeing as Sheldon tied the knot before him, it's about time.