We'll have to wait and see what happens. It's always dicey when players return from longer term injury, but I have more hope in Havertz than in Jesus.
Havertz was physically durable before Arteta ran him right into the ground over December and January. Jesus never has been. Havertz was scoring close to 1 in 2 when fit. Jesus has never looked like that at his best for Arsenal.
Best case scenario both are fit and firing for as long as we need them.