As someone who really enjoyed seeing how Loftis' cowardice played a role throughout the show (often to his benefit, id argue), I think Evan will be the end of his line. He shares in his fathers cowardice, no matter how much he tries to drum up some bravado for off island girl. The hesitance at going through his fathers room, going down the ladder in the bunker, being relieved when Bechir stops him from going in the house, etc.
I think the rest of the founding line was sown with bravery (Warren for obvious reasons, Lauren had an adventerous spirit, etc), but Evan clearly inherited his fathers fear, and I think that after learning of the truth of the island, and his own lineage (assuming he did), homeboy would definitely not be shackin' up and having kids.
