One of the things to look forward to is a new tire model. And the tire files are just a list of numbers. How about a utility that reads the files directly and plots a graph. And you can then draw a graph and have the utility create a tire file from your graph. Should save a lot of time trying to get a vintage period tire close to what you want in a lot less time. Someone might even be able to make an Excel spreadsheet do this. Just a thought!
There was an engine editing program (Easy Engine Physics Editor or something) where you could also load up tbc-files and work on the slipcurves. Though a better dedicated program would be appreciated. Especially one where it's possible to also visualize the effect of load sensitivity (3D-graph perhaps?) since that is a pretty damn big part of the feel.