"I hope you are well too" is correct and usable in written English. You can use this phrase to express your hope that the person you are speaking to is doing well. Example: "It's great to hear from you. I hope you are well too.".
I hope it is not too presumptuous to suggest that this may be true for other faiths, as well.
I hope you are well".
I hope you are well today.
I hope you're well".
Hope you are well.
"Well, I am, and I hope you are, too".
I hope you are doing well, Mom.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union