Dogger bank in the North Sea between Britain and the Netherlands is proving a fruitful source of early man artifacts, finding even earlier hominid from seabeds is fantastic.
I look forward to more exploration around the Azores and the Porcupine Bank west of Ireland as well
Finding anything deep on the Azores plateau would be quite amazing.
I am confident that exploration of the continental shelf around the world will drastically change our view of history regardless of the age of artifacts.