To answer your question directly, there is a snowball’s chance in hell that a new International Lonestar kit will be offered in a 1/25th scale kit. There has been no new 1/25th scale truck tractor kit since the early 1990s, and that was the badly made AMT T600 kit with an old W900 frame. There is no reason for any American model company to offer any new tools. As long as they can pacify the truck molders with constant reissues of 1970s kits, they will fulfill their 10 year quota for truck models. Even Italeri will not offer an International Lonestar kit, presumably in the Euro standard 1/24th scale. I was in correspondence with a model truck enthusiast who worked for International about 15 years ago. He was in talks with Italeri about offering the 9800 cabover in a kit. The results were that Italeri won’t offer International truck subjects. So to clarify, the closest you will see a Lonestar as a model is as a diecast or the special order, special cast 1/87th scale resin body available at the 1/87th scale web group.
http://www.decalprint.de/