I totally agree that Nakamura versus Styles is probably the ONLY singles showdown we haven't gotten yet, and that NJPW is going to have to shake things up at the top of the card.
However, I would much rather see Shiozaki built up in NOAH after a homecoming, with NJPW giving Goto more of a push. I know there is a small chance of that happening, though, given that they just took the IC belt off him and seem to have given up on building him up.