Chapter 7 concludes this book by summarizing its content and highlighting how the so-called “creole-like” features detected for the AHLAs can be better explained in terms of interface-constrained advanced SLA processes, which were subsequently nativized and conventionalized by following generations of speakers. Likewise, this chapter stresses the importance of these Afro-Hispanic vernaculars to linguistic theory by showing how these contact varieties can offer both a window into possible L2 instantiations of UG as well as an ideal testing ground for formal hypotheses (Sessarego 2014a), which have primarily been built on standardized language data.