The website of the new Irving Institute has a page called "Creating the Institute" that says:
The Arthur L. Irving Institute for Energy and Society will be housed in a new building on the west end of campus, between the Tuck School of Business and Thayer School of Engineering.
Further down, the page says that "Its physical location in front of the Murdough Center adds a prominent new facade to Tuck Drive."
How about that? Perhaps Baker Library will finally have an appropriate formal counterpart to terminate the Tuck Mall axis, something this website has been demanding -- stridently! -- for more than 20 years (pdf).
A task force plans to select an architect and begin construction during June of 2018.