He can come tomorrow.
He may come tomorrow.
He will come tomorrow.
He could come again.
He would come again.
He might come again.
Will, can, may... always use plural form of the verb after them ... thumb rule.
Will ( not only meet, but also have ) <--- here will is common for both parts of not only but also.
Overall I am seeing such question second time (rare), first time I have also considered to choose singular.
Our greatest weakness lies in giving up. The most certain way to succeed is to try just one more time. ― Thomas A. Edison
Don't forget to press--> Kudos
My Articles: WOULD: when to use?
Tip: Before exam a week earlier don't forget to exhaust all gmatprep problems specially for "sentence correction".