It's good to see some interest in stimulating development for os3.x/68k, but as some of you have touched on, where to start ? As for what to include, for now I think nothing should be off the table. New drivers, new apps, new patches, ports, whatever. Being that os3.x is these days a community driven system it's up to the users to shape what happens. Best plan of attack in my opinion is just for people to say what they'd like to see and hopefully the most commonly wanted things will become clearer.
Here's my thoughts:
Software should be completely system friendly. This makes bounties of use to OS4.x/mos/amithlon/draco/etc users as well. Theoretically it also opens up potential for people doing bounties for other amiga based systems to simultaneously do a 3.x version when/if applicable.
Software should consider users of classic users where applicable. (for example, a 68k open office might run ok on amithlon/winuae/etc., but if there's other roads to more modern features that will be usable on "real" amigas maybe they should be considered 1st). For me it's not about big names, but new features/functionality/software for os3.x.
As for what I'm interested in supporting:
Either a new browser, on updating existing browser (I guess Aweb is the most likely candidate for the latter). Alternatively there's a few interesting 68k browsers for other OSes. Cant hurt to email those guys. (ICab for 68k mac os and an atari st browser whos name I cant think of at the moment). Netsurf and OWB 68k versions are useful, but not really something I'll use (yet) for my main browser, and unfortunately not really useable on real (non emulated) 68k hardware.
Support for ms word .doc files. Unfortunately this is essential for me as my uni assignments are in this format and often with images, etc.
Video editting software. Ideally with some sort of compatibility with Adobe Premier (again for uni purposes), but I have no idea what sort of open source options there are out there, let alone ones that are realistic. Id be happy with something simpler though, so long as it exported to things like cdxl and iff anim.
I dont know how feasible this one is, but Id dearly love some openpci gfx card drivers with 3d acceleration. Being that Im predominantely an amithlon user I'd love to get 3d acceleration. I dont really know the technicalities involved, but if it was possible to develop a 3d subsystem and a driver or 2 that would work on both amithlon and classic amigas I'd be a happy man.
There's plenty of other stuff I'd like to see, but theyre probably the things that are of most interest to me at the moment.
So, feel free to say what you'd like to see or any thought or ideas, and hopefully eventually a clear path as how to progress will start to show itself.