My sarcasm senses are tingling but I will reply anyway.
By this time you must have understood that Cenk is not one of those players who are OK with their positions in the team as long as they are making decent money. He will fight his way back into the striker position. I have written it many times before but I will repeat again.
2015-16 season: Very first game of the season, Cenk scores an excellent hat-trick just after Mario Gomez joined the team but not ready to play yet. Next game Cenk is benched because you know, it is Mario [Poor language removed] Gomez. Gomez struggles to score for 4 weeks, everyone thinks Cenk is way too demoralized to continue now but whenever he comes off the bench, he makes a massive contribution. At the end of the season, coach says "I am very upset about not being able to give Cenk more time, he worked very hard". Gomez scored 26 goals that season and was expected to stay for the next one.
2016-17 season: Gomez leaves, Aboubakar joins late but gets the striker position back from Cenk. Don't remember the stats yet but Abou wasted lots of chances and had 4 goals in his name at the end of the first half of the season. Cenk, yet again, did not make a fuss about not being preferred above Abou and takes the jersey back at the second half of the season, contributing massively to being the champions again.
2017-18 season: Yet again, another big name joins Besiktas, Alvaro Negredo. I am aware Negredo has been in the decline but Gomez was also, so put yourself in the position of Cenk and you will find yourself being worried about not getting enough game time and get way too demoralized, remembering the Gomez season. Cenk did not falter, Negredo seriously struggled to take the striker position and everyone was thinking "Cenk is the first striker now" after his performances in the UCL games.
So, having seen Demba Ba, Gomez, Aboubakar and Negredo, Cenk did not stop working, not even once. He did not cry and whine, just continued to work. I seriously doubt Niasse and DCL will make him stop working, in fact, he will work his ass of now more than ever. He is aware of what Premier League means for his career.