i think libra coin can succeed and has more chance to succeed in the future than bitcoin facebook instagram and twitter have more users and more chances to be successful in the future than bitcoin good luck for all 
can not be predicted that Libra will pass bitcoin later because Libra not yet proof self in the crypto market although Libra has many communities on Facebook and not necessarily all Facebook users know about Crypto so in my opinion it is impossible for Libra to compete with bitcoin in the crypto market