Yes, it will be interesting to follow the SCC's (Standard Contractual Clauses). But, even though they were upheld, it is still up to the data exporter to guerantee before every transfer, that the SCC will provide an "essentially equivalent" protection to that offerend in the EU with GDPR for instance. It will also be dependant on all circumstances of the SCC whether the protections offered by it is enough, for instance if the receiving end could be compelled by the government, for instance, to hand over the data.

It is hard to imagine a SCC that could provide "essentially equivalent" protection if the other end is an American company, given the authority the US government can exert over it.