Islam says Jesus will return on Judgement Day to battle the anti Christ (while Muhammad judges the population?).
If Jesus will return on Judgement Day, why is there an empty tomb for Jesus? On Judgement Day the Earth will be destroyed. No Earth= no tomb.
Isn't Jesus already in Heaven?
Enoch (a) was put to heaven and revealed as foreshadow to Jesus (a) going up too. Elijah (a) was taken to heaven but came back on earth to take station of the holy spirit till Mohammad (s) comes, because there is always a connector and guide from God on earth.
Simon (a) was successor of Jesus (a) outwardly in the social realm type leadership, but the spiritual telepathy connection that Jesus (a) stated about himself "I am the light of the world so long as I am in this world" continued with Elijah (a) till Mohammad (s) was raised to take that station.
What is meant by John (a) being like Elijah (a) is that he was the spirit of truth as well, but people killed him, and so if Jesus (a) is risen to heaven, Elijah (a) who was witnessed by some of the apostles is guaranteed to be back since he is the only one alive from the household of revelation of that time.
Jesus (a) is coming back, but what is the reason Enoch (a) is in heaven as well? Why did Elijah (a) not die? Why others like Khidr (a) alive? It's because they been saved for a big event.
The big event will be lead primarily by Imam Mahdi (a), but Isa (a) will be there, for sure.