This is the season finale. Also this is the first episode in which only one Jennifer appears.
At the end of Big Time Audition and Big Time Concert a message says "And the Musical Journey Continues..." This episode shows that every time a season ends the message "And The Musical Journey Continues..." appears.
By this episode Lucy Stone could have developed a crush on Kendall as she appears to wink at him and hug him at the end of the song.
One of The Jennifers waves at Carlos. Meaning she may start liking him or developing a crush on him.