During the Symposium organized by Project 21: Comparative study of African, Brazilian and European varieties of Portuguese-COMPARAPORT (XIX ALFAL Congress), a set of relevant issues was raised during the debates, partly focusing the activity developed in the past 10 years of investigation associated to ALFAL, and partly the forthcoming activity. Considering these exchanges, and motivated by them, in this article I aim at to raise some questions, in particular about new possible developments of the linguistic variation and change research, both in terms of areas and in terms of collaboration with researchers in similar and/or complementary domains, in a tendentially multidisciplinary framework.
A brief account will be given of the aspects largely developed, within the scope of this Project and those that preceded it. I put forward additional proposals which, from my point of view, will be interesting to reflect on, in future debate forums, and which will, perhaps, motivate other strands of research.