With Facebook having issues with its partners, that is, losing its partners what's there to think again than to forget about it. Also, from the way it is being played now, I doubt if the zeal and interest is still there again for potential investors. Nevertheless let's keep watching as things unfold, it's centralized nature is a big blow to it already; have no interest in investing anyway.
There's literally no use of investing into stablecoin as it's just a safehaven to save your wealth from fluctuation and nothing more. Though, there's possibility that the value could also deflate due to being backed up by various assets but Libra is far from being deployed anyway so it's just better to just ignore it at this point and not being approved by government is like a dead end for the project.