The studio has put out a job listing for folks wishing to develop for future hardware.
Whether new hardware is announced at E3 or not, we're on the verge of something new. Within the next few years, the Xbox 360 and PS3 will no longer be the big boys on the block - they'll be replaced with something that, presumably, will be on the bleeding edge of technology. If the endless rumors weren't enough, Bethesda has put out a hiring notice for a next-gen console developer.
Most of the job requirements are pretty standard. Bethesda is looking for people with experience developing for current generation consoles and the ability to work without constant supervision. One thing stands out though. The company says that DirectX 11 programming experience is a plus. That lends some credence to the rumors that the new Xbox will make use of DirectX 11.
This job listing could also refer to the upcoming Wii U, which Bethesda has been considering developing games for. It seems to be a safe bet that after the success of 'Skyrim,' Bethesda will want to stay on the core system train.