Too late. They most likely missed the crypto train. Banning crypto ads and accounts damaged their reputation and it wasn't already in a good shape before it.
It will still create some hype however. It still has a name which is worth millions of dollars. Just a name...
I don't think it's too late for Facebook, we know that Facebook has a big name even though it actually tarnished in the crypto world, but I'm sure with the big steps and seriousness that the Facebook party will take a lot of big investors come and this will be truly extraordinary.