1. Minimalistic UI design may suffice (I'm not convinced) for web content that are visited for a few minutes, but web applications that are stared at for hours need follow Gestalt principles. Graphic design is not about tossing comps over the transom and forcing downstream stakeholders to accept the consequences.
2. Will we return to waterfall approaches at companies that are eliminating or single-threading interaction design departments? That is say, will sneaky product managers go full bore, communicating all design ideas directly to software developers?