It would help to have the entire sentence. That said, "would be welcome" is a stock phrase in English. I think it would be most natural to say, "... an interview would be welcome [in order] to reveal more accurately* ..."
*I'm not a stickler about split infinitives, but to my ears "to more accurately reveal" is an ugly one, so I changed it. You can read the many threads here about split infinitives and make up your own mind.