I'm sorry to have to say, I don't believe I'll be releasing many updates in the future to the tools, if any at all at the present pace of things. I'm pretty busy with other important things in my life to the point where working on the tools is just not possible for me to do. The tools still don't do everything I'd have wanted and it's my hope in the future that someone takes an interest in developing proper tools to support creating custom M3 models. I've always provided the source code to the maxscripts so that people might learn or use the information to construct their own tools. One of these days I'll try to update libm3 to include the extra information I've learned so future developers don't have to learn the hard way, through trial and error.
It's my belief that Blizzard will not release significant tools in the future... Even if StarTools is released, it seems primarily to create doodads instead of the diverse models capable of being supported by the engine. If they do release their max plugins, they will undoubtedly be restricted to certain versions just as the tools for Warcraft 3 were. It's really up to developers present in the community to make these tools a reality. Anyone with decent knowledge of 3D graphics and programming can contribute. When I first started working on the tools, most of my knowledge was extremely basic at best, it's more about knowing what you want to achieve and realising the steps to take to achieve it.
It's been a fun hobby to indulge in and I'm very thankful for all the support you guys provided aswell as the multitude of feedback. It still frustrates me that I'm not able to fix all the problems you guys have, especially regarding shading/bone weight issues. I feel like these are basic things that should just work instead of being an obstacle to creativity and exporting. There's still alot I wanted to get done, such as a tool for transferring animations from one model to another that have similar bone hierarchies (this would be really cool, it would basically allow anyone to animate their model with professional Blizzard-like animations from WoW, WC3 or other SC2 models for instance).
I also envision a tool similar to an expanded version of WoW model viewer which allows you to do basic editing of all Blizzard models and import/export between the various Blizzard model formats. I think this would allow the community a great deal of customisation of stock models without having to own expensive software. Bare in mind Diablo 3 is also on the horizon with its plethora of models and a new modelling format to decypher. In addition, Blizzard doesn't seem to mind transferring their assets between the Blizzard games as I do remember they tweeted about the World of Warcraft custom models being used within the Starcraft 2 engine. So there's not too much concern about them interferring legally with such a tool if it were to be created.