I highly doubt we've heard the end of it.
Spoilers for those who haven't completely finished the SB MSQ.
In one of the cutscenes at the very tail end of the MSQ you see the Garlean emperor Varis zos Galvus talking to the white Ascian Elidibus and their dialog heavily implies that the experiments are/will continue to be important. At one point lamenting Zenos' death as 'the lost of an important test subject.'