There's a good chance that even XRP will not get affected.
I think it may be eve good for XRP.
Let´s suppose Libra become a competitors to banks (centralized, have to follow legislation rules, more open than banks, faster, cheaper, reliable, etc).
Libra may force banks to modernize. How will they modernize? XRP may be the answer for them. XRP always tried to get blockchain tech into banks.