Hector Bellerin
The right-back position could see more than 2 players compete for it again next season, but Hector Bellerin is one of two players who could enjoy more game time in this area of the field.
The young Spanish full-back has enjoyed an impressive breakthrough season, during the long term absence of senior defender Mathieu Debuchy. His reputation as the quickest player in the squad has been made evident, in his energetic offensive efforts, earning himself 2 league goals in the process.
Bellerin is definitely developing to be a great full-back for Arsenal, hopefully for more years to come, before the haunting clutches of his home club Barcelona come to snatch him back.