Ash&Pikachu-Fan
Pika-Speed
I chose, "Yes" 'cause I see no option to chose a "Maybe", I could have chosen "No" and as I'm too sure but its good to stay positive for characters you really like!
I think he will stay, or at least he should since replacing male sidekicks every gen is completely unnecessary. Brock wore out his welcome when he stayed for 13 years. That's not the case with Cilan which means he can afford to stay for at least one more gen.
I don't see why replacing the male every gen is any different than the female. You can say even Max technically replaced Brock during AG even if he was still there at the time.
For stability and continuity purposes, it's better to keep cilan than bringing in two more new characters. Cilan has been here for almost 3 years and he hasn't done much other than cook and bring knowledge. There's no reason why he can't stay.
I don't think it matters at this point when most main characters, rivals and pokemon are always dropped with each saga transition.
Every single new character who was introduced during DP was dropped from the series for example.
But DP was a 4 year series unlike BW. I don't see the point in bringing in another male sidekick who can cook and bring knowledge, and then he would leave when his gen is up, leaving us with a bunch of underdeveloped male sidekicks.