I have heard that facebook will have a project so it's likely to say that many will be interested in the facebook crypto project and I'm sure many investors will invest in facebook ieo.
There will be huge number of investors and supporters for this as FAcebook is a good company and well known.
IEO is not an option for them as they will pay for the exchange to take place the sale. I think LIBRA or FBcoin will go just ICO.
It will be a moving coin though as it will be use on FACEBOOK ((just thoughts)