USB OTG worked on zear's unit, but as of last testing didn't work on mine due to overvolting, which could destroy your GCW Zero if left unattended for more time than I left a USB device plugged into mine. TV-out worked for one TV
, without scaling - this is hardly general enough, and won't handle anything well, including PAL vs. NTSC, their resolutions and frame rates, and the proper detection of plugging headphones vs. the TV cable.
If all you care about is having waited a year without TV-out and USB OTG and wanting them now, you can compile a kernel yourself if you follow the instructions at https://github.com/gcwnow/linux/wiki
and add our experimental USB OTG and TV-out drivers in 'make menuconfig'. But by doing so you accept all responsibility if you destroy your GCW Zero.
(And of course, not a single application will output at the resolution of your TV, and very few applications will recognise controllers you plug in.)
You can also keep asking zear (or me), but we're not kernel developers, only testers, and the kernel developers don't ship features that they know to be bad or incomplete.