There are four options about the tapes...(if they exist).
1) They completely exonerate Rump and show Comey to be an incredible liar. (If this were the case I would have expected to hear them by now.)
2) The Rump administration will deny they exist, and if they come out it will be so strangely similar to Nixon.
3) The Rump administration will fight tooth and nail in court to not release them.
4) The Rump administration will release them and make up some insane story, that his people will believe, about how they don't say what they say.