I think we have nothing to worry about, and we wont be sad if we discovered that prophet Jesus was the almighty in that day(lets assume), because:-
1- we are worshiping one God and follow his commandments.
2- the God we worship is the God of prophet Abraham whoever he is (glorified his attributes)
3- we are praising, and send salutations to the Prophet Jesus at the same time.
4- he is been called prophet many time in the roman bibloc, even if he were the prophet of himself, we believed in him as a prophet.
5- he is been called a slave in roman biblos, and if he is the one mentioned in Isaiah 53, even if he is the slave of himself, but we believed in him as a slave.
6- romans have parted God to 3 parts like they parted their universal worlds(3) and the universal Church(pope as a deputy of ....., priests and so on as a messengers of ..... , sheep ) , then we are believing in the spiritual part of him, while Christians believing in the material part like the majoos.
7- and many other reasons.
the issues will be with Christians when they finds out that prophet Jesus was just a human revelation, and wasn't really a God nor Son of God or son of Zeus or brahma.. and when they know that they rejected to believe the completed out of human physical corruptions revelation, which been preserved by Allah almighty by using a very honest slaves of his.