Update: I just got an update! The issue isn't that there isn't a plan to eventually do a new large print missal, they are trying to figure out how to do it while cutting down on the weight. They don't have any time-table yet.
A have a bias to admit. My favorite Ordinary Form missal has always been the Daily Roman Missal. Everything is in one volume, the art is classic in flavor and it contains Latin and English for the ordinary of the Mass. Unfortunately we just received confirmation from the publisher that they don't plan on producing a large print edition this time around. They will still have plenty of standard print options available.
This leaves the St. Joseph Sunday Missal in large print as the only large-print missal option.