Hi Jon! Nice to meet you! Would Cal receive a letter from Edward or something? I highly doubt he'd seek out the Trust all by himself, since going there would be tacitly admitting to other people that he has a power in the first place. Cal is weird - he's okay with the fact that he can see the future, but he's not okay with other people knowing that. Either way, I think he might take some convincing, but if Edward discovers it soon enough he'd probably be able to coax Cal into at least coming in for some tests.